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Hydrology
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United States of America
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1. National Flood Hazard Layer: Berks County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
2. National Flood Hazard Layer: Bucks County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
3. National Flood Hazard Layer: Centre County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
4. National Flood Hazard Layer: Delaware County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
5. National Flood Hazard Layer: Erie County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
6. National Flood Hazard Layer: Fayette County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
7. National Flood Hazard Layer: Jefferson County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
8. National Flood Hazard Layer: Lancaster County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
9. National Flood Hazard Layer: Monroe County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
10. National Flood Hazard Layer: Montgomery County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
11. National Flood Hazard Layer: Warren County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
12. National Flood Hazard Layer: York County, Pennsylvania
2017. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
13. Digital Flood Insurance Rate Map Database, Delaware
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
14. Digital Flood Insurance Rate Map Database, District of Columbia
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
15. Digital Flood Insurance Rate Map Database, Maryland
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
16. Digital Flood Insurance Rate Map Database, New York
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
17. Digital Flood Insurance Rate Map Database, Ohio
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
18. Digital Flood Insurance Rate Map Database, Virginia
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
19. Digital Flood Insurance Rate Map Database, West Virginia
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
20. National Flood Hazard Layer: Adams County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
21. National Flood Hazard Layer: Allegheny County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
22. National Flood Hazard Layer: Armstrong County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
23. National Flood Hazard Layer: Beaver County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
24. National Flood Hazard Layer: Blair County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
25. National Flood Hazard Layer: Bradford County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
26. National Flood Hazard Layer: Chester County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
27. National Flood Hazard Layer: Clinton County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
28. National Flood Hazard Layer: Dauphin County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
29. National Flood Hazard Layer: Elk County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
30. National Flood Hazard Layer: Lebanon County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
31. National Flood Hazard Layer: Luzerne County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
32. National Flood Hazard Layer: Lycoming County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
33. National Flood Hazard Layer: McKean County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
34. National Flood Hazard Layer: Mercer County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
35. National Flood Hazard Layer: Northumberland County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
36. National Flood Hazard Layer: Philadelphia County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
37. National Flood Hazard Layer: Tioga County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
38. National Flood Hazard Layer: Washington County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
39. National Flood Hazard Layer: Westmoreland County, Pennsylvania
2016. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
40. Digital Flood Insurance Rate Map Database, Pennsylvania
2015. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance ap...
41. National Flood Hazard Layer: Greene County, Pennsylvania
2015. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
42. National Flood Hazard Layer: Somerset County, Pennsylvania
2015. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
43. National Flood Hazard Layer: Susquehanna County, Pennsylvania
2015. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
44. National Flood Hazard Layer: Venango County, Pennsylvania
2015. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
45. National Flood Hazard Layer: Clarion County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
46. National Flood Hazard Layer: Crawford County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
47. National Flood Hazard Layer: Northampton County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
48. National Flood Hazard Layer: Potter County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
49. National Flood Hazard Layer: Schuylkill County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
50. National Flood Hazard Layer: Sullivan County, Pennsylvania
2014. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
51. HAZUS Flood Analysis for Baltimore City, Maryland
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
52. HAZUS Flood Analysis for Baltimore County, Maryland
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
53. HAZUS Flood Analysis for Bradford County, Pennsylvania
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
54. HAZUS Flood Analysis for Delaware Effective Coastal
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
55. HAZUS Flood Analysis for Lackawanna County, Pennsylvania
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
56. HAZUS Flood Analysis for Sullivan County, Pennsylvania
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
57. HAZUS Flood Analysis for Susquehanna County, Pennsylvania
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
58. HAZUS Flood Analysis for Wyoming County, Pennsylvania
2013. A HAZUS flood analysis is an estimation of economic and social losses associated with a specific return period of flooding. Results are provided as...
59. National Flood Hazard Layer: Cumberland County, Pennsylvania
2013. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
60. National Flood Hazard Layer: Wayne County, Pennsylvania
2013. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
61. National Flood Hazard Layer: Bedford County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
62. National Flood Hazard Layer: Cambria County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
63. National Flood Hazard Layer: Franklin County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
64. National Flood Hazard Layer: Huntingdon County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
65. National Flood Hazard Layer: Indiana County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
66. National Flood Hazard Layer: Juniata County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
67. National Flood Hazard Layer: Lawrence County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
68. National Flood Hazard Layer: Wyoming County, Pennsylvania
2012. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
69. National Flood Hazard Layer: Cameron County, Pennsylvania
2011. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
70. National Flood Hazard Layer: Clearfield County, Pennsylvania
2011. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
71. National Flood Hazard Layer: Fulton County, Pennsylvania
2011. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
72. National Flood Hazard Layer: Mifflin County, Pennsylvania
2011. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
73. National Flood Hazard Layer: Forest County, Pennsylvania
2010. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
74. National Flood Hazard Layer: Lehigh County, Pennsylvania
2009. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
75. National Flood Hazard Layer: Perry County, Pennsylvania
2009. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
76. National Flood Hazard Layer: Union County, Pennsylvania
2009. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
77. National Flood Hazard Layer: Columbia County, Pennsylvania
2008. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
78. National Flood Hazard Layer: Montour County, Pennsylvania
2008. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
79. National Flood Hazard Layer: Synder County, Pennsylvania
2007. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
80. National Hydrography Dataset (NHD) Flowline: Allegheny
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
81. National Hydrography Dataset (NHD) Flowline: Delaware
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
82. National Hydrography Dataset (NHD) Flowline: Monongahela
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
83. National Hydrography Dataset (NHD) Flowline: Southwest Lake Ontario
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
84. National Hydrography Dataset (NHD) Waterbody: Allegheny
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
85. National Hydrography Dataset (NHD) Waterbody: Monongahela
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
86. National Hydrography Dataset (NHD) Waterbody: Potomac
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
87. National Hydrography Dataset (NHD) Waterbody: Southwest Lake Ontario
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m...
88. National Flood Hazard Layer: Carbon County, Pennsylvania
2002. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...
89. National Flood Hazard Layer: Pike County, Pennsylvania
2000. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...