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201. Massachusetts (State Outline, 1991)

MassGIS (Office : Mass.) and MassGIS. This layer represents the outline of the Commonwealth of Massachusetts. MassGIS.

202. Massachusetts (State Plane Points, 1989)

MassGIS and MassGIS (Office : Mass.). The MassGIS has adopted the Massachusetts State Plane Coordinate System (SPC) as its standard coordinate reference system, using the mainland zone ... MassGIS.

203. Massachusetts (State Register of Historic Places, 1997)

MassGIS (Office : Mass.) and MassGIS. The State Register of Historic Places (SRHP) datalayers consist of both point and polygon coverages which represent locations or boundaries of sign... MassGIS.

204. Massachusetts (State Register of Historic Places, 1997b)

MassGIS (Office : Mass.) and MassGIS. The State Register of Historic Places (SRHP) datalayers consist of both point and polygon coverages which represent locations or boundaries of sign... MassGIS.

205. Massachusetts (State Register of Historic Places, 1997c)

MassGIS (Office : Mass.) and MassGIS. The State Register of Historic Places (SRHP) datalayers consist of both point and polygon coverages which represent locations or boundaries of sign... MassGIS.

206. Massachusetts (State Register of Historic Places, 1997d)

MassGIS (Office : Mass.) and MassGIS. The State Register of Historic Places (SRHP) datalayers consist of both point and polygon coverages which represent locations or boundaries of sign... MassGIS.

207. Massachusetts (Statewide Train Lines, 1998)

MassGIS (Office : Mass.) and MassGIS. This layer represents train lines for the Commonwealth of Massachusetts. The Central Transportation Plannig Staff will update the datalayer as needed. MassGIS.

208. Massachusetts (Street Centerlines, 1998)

MassGIS (Office : Mass.) and MassGIS. The linework in this layer - representing roadways and railroads - was produced as part of the 1:5,000 Black and White Digital Orthophoto images pr... MassGIS.

209. Massachusetts (Town Boundaries for Census, 2003)

MassGIS (Office : Mass.). This layer was produced by MassGIS for display purposes when mapping any of the other Census 2000 layers. The town boundary and coastline features ... MassGIS (Office : Mass.).

210. Massachusetts (Town Halls, 2007)

Massachusetts Emergency Management Agency. The Town Halls layer shows the location of 355 primary executive offices, including town or city halls and annexes. The Massachusetts Emergency Man... MEMA.

211. Massachusetts (Tracks and Trails, 2001)

MassGIS (Office : Mass.) and MassGIS. The Tracks and Trails Datalayer represents unimproved roadways and trails that previously had been part of the MassGIS roads data. MassGIS now uses... MassGIS.

212. Massachusetts (Trails, 2001)

MassGIS (Office : Mass.). The Tracks and Trails Datalayer represents unimproved roadways and trails that previously had been part of the MassGIS roads data. MassGIS now uses... MassGIS (Office : Mass.).

213. Massachusetts (Train Routes 2004)

MassGIS (Office : Mass.). The Central Transportation Planning Staff updated and enhanced railroad linework distributed by the United States Geological Survey (USGS) as 1:100... MassGIS (Office : Mass.).

214. Massachusetts (Train Stations, 1998)

MassGIS (Office : Mass.) and MassGIS. This layer represents train stops for the Commonwealth of Massachusetts. The Central Transportation Plannig Staff will update the datalayer as needed. MassGIS.

215. Massachusetts (Train Stations 2004)

MassGIS (Office : Mass.). The Central Transportation Planning Staff updated and enhanced railroad linework distributed by the United States Geological Survey (USGS) as 1:100... MassGIS (Office : Mass.).

216. Massachusetts (Train Tracks, 2004)

MassGIS (Office : Mass.). The Central Transportation Planning Staff updated and enhanced railroad linework distributed by the United States Geological Survey (USGS) as 1:100... MassGIS (Office : Mass.).

217. Massachusetts (UTM Grid, 1996)

MassGIS and MassGIS (Office : Mass.). The Universal Transverse Mercator (UTM) grid is an X-Y coordinate system used as a reference on medium- to small-scale maps for representing the th... MassGIS.

218. Massachusetts (UTM Point, 1996)

MassGIS and MassGIS (Office : Mass.). The Universal Transverse Mercator (UTM) grid is an X-Y coordinate system used as a reference on medium- to small-scale maps for representing the th... MassGIS.

219. Massachusetts voting districts from 2010 Census

2010. US Census Bureau, Geography Division. Voting districts in Massachusetts based on the US decennial Census of 2010. The TIGER/Line shapefiles and related database files (.dbf) are an extr...

220. Massachusetts (Watersheds, 2000)

MassGIS (Office : Mass.). MassGIS has produced a statewide digital datalayer of the 32 major watersheds covering Massachusetts as defined by the USGS Water Resources Divisi... MassGIS (Office : Mass.).

221. Massachusetts (ZCTA - 5 digit zip code tabulation area, 2000)

United States. Bureau of the Census. United States. Bureau of the Census.

222. Massachusetts (Zoning, 2002)

MassGIS (Office : Mass.) and MassGIS. This layer represents the outline of the Commonwealth of Massachusetts. The MassGIS zoning datalayer represents the boundaries of municipal zoning ... MassGIS.

223. Miscellaneous Industrial Minerals Operations

2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents ferrous metal processing plants in the United States. The data represent commodities covered by the Minerals Inform... National Atlas of the United States.

224. National Fire Plan - Hazardous Fuels Reduction Program, 2004

2004. National Atlas of the United States. This polygon shapefile portrays county level data for the fiscal-year-2004 National Fire Plan - Hazardous Fuels Reduction Program. The purpose of t... National Atlas of the United States.

225. National Register Historic Places (Points), Maine, Massachusetts and Rhode Island, 2014

2014. Nature Conservancy (U.S.). This point shapefile contains site locations from the National Register of Historic Places in Maine, Massachusetts and Rhode Island within 10km of ... Northeast Regional Ocean Council.

226. National Register Historic Places (Polygons), Maine, Massachusetts and Rhode Island, 2014

2014. Nature Conservancy (U.S.). This point shapefile contains site locations from the National Register of Historic Places in Maine, Massachusetts and Rhode Island within 10km of ... Northeast Regional Ocean Council.

227. National Water Information System Stations, Northeast United States, 2010

2010. United States. National Oceanic and Atmospheric Administration, United States. National Ocean Service, and United States. Department of Commerce. This point shapefile contains the locations of the National Water Information System (NWIS) stations in the Northeastern United States. As part of ... United States. National Ocean Service.

228. National Wilderness Preservation System of the United States, 2006

1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.

229. New England Electrical Transmission Lines, 2013-2022

2013. United States. National Oceanic and Atmospheric Administration. This line shapefile represents existing and planned electric transmission lines through 2022 in the New England coastal region (United States). A t... United States. National Oceanic and Atmospheric Administration.

230. New England Electrical Transmission Substations, 2013-2022

2013. United States. National Oceanic and Atmospheric Administration. This point shapefile represents existing electrical transmission substations and those planned through 2022 for the New England coastal region. A s... United States. National Oceanic and Atmospheric Administration.

231. No Discharge Zones, Northeast United States, 2011-2014

2011. Applied Science Associates. This polygon shapefile represents No Discharge Zones in the Northeastern United States. A No Discharge Zone (NDZ) is a designated boundary within w... Northeast Ocean Data.

232. Nonferrous Metal Mines

2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents locations of nonferrous metal mines in the United States. The data represent commodities covered by the Minerals In... National Atlas of the United States.

233. Nonferrous Metal Processing Plants

2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes nonferrous metal processing plants in the United States. The data represent commodities covered by the Minerals Infor... National Atlas of the United States.

234. North American Atlas - Bathymetry (Polygons)

2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Canada Centre for Mapping, and Geological Survey (U.S.). This polygon shapefile contains bathymetric data with depth in metres for ocean areas covered by the extent of the North American Atlas project. Is... Canada Centre for Mapping.

235. Northeast United States Boundary, 2010

2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile represents the boundary of the Northeastern United States. This is a utility data set for managing and display of data in th... Coastal Services Center (U.S.).

236. Ocean Disposal Sites, Northeast United States, 2012

2012. I.M. Systems Group. The term disposal site means a finally approved and precise geographical area within which ocean dumping of wastes is permitted under conditions sp... Coastal Services Center (U.S.).

237. Offshore Tidal Hydrokinetic Projects for United States Waters, June 2013

2013. United States. Department of Commerce, United States. National Ocean Service, and United States. National Oceanic and Atmospheric Administration. Pending or issued preliminary permits* or issued licenses for offshore hydrokinetic projects that produce energy from the flow of water in ocean cu... Coastal Services Center (U.S.).

238. Omernik's Level III Ecoregions of the Continental United States, 2003

2003. United States. Environmental Protection Agency. This polygon shapefile shows Omernik's Level III ecoregions, derived from a 1:7,500,000 map created by J.M. Omernik in 1987 and from refinements of... National Atlas of the United States.

239. Outer Continental Shelf Lease Blocks, Northeast United States, 2007

2005. United States. Department of Commerce, United States. National Oceanic and Atmospheric Administration, and United States. National Ocean Service. This polygon shapefile contains outer continental shelf (OCS) lease blocks in the northeast region. OCS blocks are used to define small geographic ... United States. National Ocean Service.

240. Outlines of Major Calderas and Impact Structures: Generalized Geologic Map of the Conterminous United States, 2005

2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. A caldera is a large, generally circular depre... Geological Survey (U.S.).

241. Pilot Boarding Areas, Northeast United States, 2009-2013

2009. Applied Science Associates. Pilot boarding areas are locations at sea where pilots familiar with local waters board incoming vessels to navigate their passage to a destination... Northeast Ocean Data.

242. Population and Race by County, Coastal Northeast United States, 2010

2010. United States. Bureau of the Census and United States. National Ocean Service. This polygon shapefile represents population and race by county for coastal regions in the Northeastern United States for 2010. This data product w... Northeast Ocean Data.

243. Population and Race by State, Coastal Northeast United States, 2010

2010. United States. Bureau of the Census and United States. National Ocean Service. This polygon shapefile represents population and race by state for coastal regions in the Northeastern United States for 2010. This data product wa... Northeast Ocean Data.

244. Ports of the United States, 2014

2014. National Atlas of the United States. This map layer shows major ports in the United States, Puerto Rico, and the U.S. Virgin Islands. A port is a city, town, or urban area with a harbo... National Atlas of the United States.

245. Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands

2003. Geological Survey (U.S.). Water Resources Division. Wisconsin District. This polygon shapefile contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islan... Geological Survey (U.S.).

246. Public Land Survey System of the United States, 2010

2010. Geological Survey (U.S.). This polygon shapefile portrays the Public Land Surveys of the United States, including areas of private survey, donation land claims, and land gra... Geological Survey (U.S.).

247. Q3 flood data, Massachusetts

1996. Federal Emergency Management Agency. Q3 flood data for Massachusetts, 1996. The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency ... Federal Emergency Management Agency.

248. Quaternary Fault and Fold Database of the United States (Lines)

2005. Geological Survey (U.S.). This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of signific... National Atlas of the United States.

249. Quaternary Fault and Fold Database of the United States (Polygons)

2005. Geological Survey (U.S.). This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of signific... National Atlas of the United States.

250. Railroad and Bus Passenger Stations of the United States, 2012

2012. National Atlas of the United States. This point shapefile shows Amtrak intercity railroad and bus passenger terminals in the United States. There are no Amtrak stations in Alaska or Ha... National Atlas of the United States.

251. Railroads of the United States, 2005

2005. Geological Survey (U.S.). This line shapefile represents railroads in the conterminous United States and Alaska at 1:2,000,000. This is a replacement for the December 1998 m... Geological Survey (U.S.).

252. Recreational Boater Activities, Northeast United States, 2012

2012. SeaPlan. The Northeast Recreational Boater Activities Layer depicts activity points plotted by participants in the 2012 Northeast Recreational Boater Survey... Northeast Ocean Data.

253. Recreational Boater Routes, Northeast United States, 2012

2012. SeaPlan. The Northeast Recreational Boater Routes displays recreational boater routes that were mapped by participants in the 2012 Northeast Recreational Bo... Northeast Ocean Data.

254. Refractory, Abrasive, and Other Industrial Minerals Operations

2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents the locations of refractory, abrasive, and other industrial minerals operations in the United States. The data repr... National Atlas of the United States.

255. Safety, Security Regulated Areas, Northeast United States, 2014

2014. SeaPlan. The Regulated, Safety and Security Zones map layer identifies areas in which vessel access is either limited or restricted, or within which special... Northeast Ocean Data.

256. Sand and Gravel Operations in the United States

2002. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes sand and gravel operations in the United States. These data were obtained from information reported voluntarily to th... National Atlas of the United States.

257. Secondary School Districts, Massachusetts, 2000

2000. U.S. Census Bureau. Geography Division. This polygon shapefile represents the 2000 U.S. Census secondary school district boundaries in Massachusetts. Secondary school districts provide ed... U.S. Census Bureau. Geography Division.

258. Seismic Hazard Map for the United States

2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.

259. Senate Districts Massachusetts 2002

Massachusetts. General Court. Senate. The Massachusetts Senate Legislative Districts (2002) datalayer reflects the state Senate district boundaries as defined by Massachusetts General L... MassGIS (Office : Mass.).

260. Shellfish Habitats for Maine, Massachusetts, and New Hampshire, 1975-2013

1975. Nature Conservancy (U.S.). This shellfish habitat layer was derived from datasets from Maine, Massachusetts and New Hampshire state GIS resources. Shapefiles downloaded/provi... Northeast Ocean Data.

261. Shellfish Management Areas, Northeastern United States, 2013

2013. Maine. Department of Marine Resources. This polygon shapefile represents shellfish growing and classification areas for states in the northeastern U.S. including Connecticut, Maine, Mass... Northeast Ocean Data.

262. Significant United States Earthquakes, 1568-2009

1568. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.

263. Spread of Africanized Honey Bees in the United States, 1990-2005

1990. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.

264. State Boundaries of the United States, 2005

1972. Geological Survey (U.S.). This polygon shapefile portrays the state boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map l... Geological Survey (U.S.).

265. States, Northeast United States, 2007

2007. U.S. Census Bureau. Geography Division and United States. Department of Commerce. This polygon shapefile contains state boundaries for the Northeastern United States The TIGER/Line Files are shapefiles and related database files ... United States. National Ocean Service.

266. Streamflow Gaging Stations of the United States, 2013

2013. Geological Survey (U.S.). This point shapefile contains selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2013. Gaging s... Geological Survey (U.S.).

267. Submarine Cables, Northeast United States, 2010

2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This line shapefile depicts the location of submarine cables as defined by the NOAA Electronic Navigation Charts and the NOAA Raster Nautical Chart... Coastal Services Center (U.S.).

268. Time Zones of the United States, 2005

1972. National Atlas of the United States. This polygon shapefile portrays the time zones of the United States, Puerto Rico, and the U.S. Virgin Islands. Also included are the Greenwich Mean... National Atlas of the United States.

269. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2005 (Sector Level)

2005. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2005. This data product was created b... Coastal Services Center (U.S.).

270. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2006 (Sector Level)

2006. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2006. This data product was created b... Coastal Services Center (U.S.).

271. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2007 (Sector Level)

2007. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2007. This data product was created b... Coastal Services Center (U.S.).

272. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2008 (Sector Level)

2008. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2008. This data product was created b... Coastal Services Center (U.S.).

273. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2009 (Sector Level)

2009. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2009. This data product was created b... Coastal Services Center (U.S.).

274. Time-Series Data on the Ocean and Great Lakes Economy for Counties, States, and the Nation, 2010 (Sector Level)

2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). This polygon shapefile contains time series data for the coastal regions of the Northeastern United States in 2010. This data product was created b... Coastal Services Center (U.S.).

275. Unexploded Ordnance Areas, Northeast United States, 2012

2012. I.M. Systems Group. Unexploded ordnance (or UXOs/UXBs, sometimes identified as UO) are explosive weapons (bombs, bullets, shells, grenades, land mines, naval mines, et... United States. National Oceanic and Atmospheric Administration.

276. Unexploded Ordnance Locations, Northeast United States, 2012

2012. I.M. Systems Group. Unexploded ordnance (or UXOs/UXBs, sometimes identified as UO) are explosive weapons (bombs, bullets, shells, grenades, land mines, naval mines, et... Coastal Services Center (U.S.).

277. United States Cancer Mortality 1970-1994

1974. U.S. Geological Survey. This data set contains 1970-1994 cancer mortality information for counties in the United States. Included are death rates, number of deaths, confi... U.S. Geological Survey.

278. United States Crimes 1994-2000

1994. National Atlas of the United States. This map layer shows crime statistics for the United States for theyears 1994-2000, drawn from the Uniform Crime Reporting Program datacompiled by ... National Atlas of the United States.

279. United States Crimes 2001-2002

2001. National Atlas of the United States. This map layer shows crime statistics for the United States for the years 2001-2002, drawn from the Uniform Crime Reporting Program datacompiled by... National Atlas of the United States.

280. United States Income and Employment 1979-1981

1979. National Atlas of the United States. This map layer portrays 1979, 1980, and 1981 estimates for total personal income, per capita personal income, annual number of full-time and part-t... National Atlas of the United States.

281. United States Income and Employment 1982

1982. National Atlas of the United States. This map layer portrays 1982 estimates for total personal income, per capita personal income, annual number of full-time and part-time jobs, averag... National Atlas of the United States.

282. United States Income and Employment 1983-1987

1983. National Atlas of the United States. This map layer portrays 1983 to 1987 estimates for total personal income, per capita personal income, annual number of full-time and part-time job... National Atlas of the United States.

283. United States Income and Employment 1988

1988. National Atlas of the United States. This map layer portrays 1988 estimates for total personal income, per capita personal income, annual number of full-time and part-time jobs, averag... National Atlas of the United States.

284. United States Income and Employment 1989-1990

1989. National Atlas of the United States. This map layer portrays 1989 and 1990 estimates for total personal income, per capita personal income, annual number of full-time and part-time job... National Atlas of the United States.

285. United States Income and Employment 1991-1992

1991. National Atlas of the United States. This map layer portrays 1991 and 1992 estimates for total personal income, per capita personal income, annual number of full-time and part-time job... National Atlas of the United States.

286. United States Income and Employment 1993-2001

1993. National Atlas of the United States. This map layer portrays 1993 to 2001 estimates for total personal income, per capita personal income, annual number of full-time and part-time jobs... National Atlas of the United States.

287. United States Income and Employment 2002-2003

2002. National Atlas of the United States. This map layer portrays 2002 and 2003 estimates for total personal income, per capita personal income, annual number of full-time and part-time job... National Atlas of the United States.

288. United States Income and Employment 2004-2008

2004. National Atlas of the United States. This map layer portrays 2004-2008 per capita personal income, annual number of full-time and part-time jobs, average wage per job in dollars, popul... National Atlas of the United States.

289. United States Labor Statistics 2000-2001

2000. National Atlas of the United States. This data set portrays labor statistics annual averages for the years 2000 and 2001, shown by county, for the United States and Puerto Rico. The d... National Atlas of the United States.

290. United States Labor Statistics 2002-2004

2002. National Atlas of the United States. This data set portrays labor statistics annual averages for the years 2002 to 2004, shown by county, for the United States and Puerto Rico. The da... National Atlas of the United States.

291. United States Labor Statistics 2005-2009

2005. National Atlas of the United States. This data set portrays labor statistics annual averages for the years 2005 to 2009, shown by county, for the United States and Puerto Rico. The da... National Atlas of the United States.

292. United States Mortality Database 1988-1992

1988. U.S. Geological Survey. This map layer contains mortality information for United States Health Service Areas (805 groups of counties). Included are mortality rates by sex... U.S. Geological Survey.

293. United States Populated Places, 2013

2011. United States. Bureau of Transportation Statistics. This data set includes cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities were collected from the 1970 National Atl... U.S. Geological Survey.

294. Urban Areas of the United States, 2001

2001. Geological Survey (U.S.). This data set includes a selection of urban areas in the United States derived from the urban areas layer of the Digital Chart of the World (DCW). ... Geological Survey (U.S.).

295. Volcanoes: United States, 2004

2004. National Atlas of the United States. This point shapefile includes Holocene volcanoes, which are those thought to be active in the last 10,000 years, that are within an extended area o... National Atlas of the United States.

296. Wildland Fires, USA, 1937 to 2017

1937. Wildland Fires documented by the National Park service between 1937 and 2017. National Park Service.

297. Wind Energy Areas, Northeast United States, 2009

2009. Massachusetts Coastal Zone Management Office. The ocean management plan establishes three categories of management areas: Prohibited, Renewable Energy, and Multi-Use. Renewable Energy Areas all... United States. National Oceanic and Atmospheric Administration.

298. Wrecks and Obstructions, Northeast United States, 2010

2010. United States. National Oceanic and Atmospheric Administration, United States. Department of Commerce, United States. National Ocean Service, and Coastal Services Center (U.S.). The Automated Wreck and Obstruction Information System (AWOIS) is an automated file that contains information on wrecks and obstructions, and other... Coastal Services Center (U.S.).