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1. 3.75-Minute Quarter Quadrangle Boundary: Pennsylvania

2003. Pennsylvania Spatial Data Access. Index of USGS quarter-quadrangles (3.75 minute) covering Pennsylvania. The polygons are attributed with information pertaining to the USGS/PaGS Dig...

2. Appalachian Trail centerline: Pennsylvania

2003. Appalachian Trail Conference. This data set represents the most current depiction of the Appalachian National Scenic Trail centerline for the portion of the trail passing throug...

3. Big Brown Bat distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

4. Eastern Pipistrelle distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

5. Eastern Red Bat distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

6. Eastern Small-footed Myotis distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

7. Ecoregions United States (Omernik)

2003. U.S. Environmental Protection Agency. This map layer 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 Omernik...

8. Evening Bat distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

9. Hoary Bat distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...

10. Indiana Myotis distribution in North America

2003. Angela E. England, Bat Conservation International, Inc. This map layer portrays our current understanding of the distributions of United States and Canadian bat species during the past 100-150 years. Spe...