This is the ANCILLARY\GRIDS directory of the digital database for the Pennsylvania GAP Analysis project.  Delivered to the National GAP Analysis Program June, 2000.  These GIS layers where developed during the GAP project were used directly during the habitat modeling process.  Each layer has an associated Metadata file in HTML format.

Cover Name				Contents

padem90		Pennsylvania’s digital elevation model generalized to a 90m cell size.

paemwet_100		Emergent wetlands with a 100m buffered zone. 

Paemwet_sm		Emergent wetlands with 40m, 70m and 100m buffer zones.

Paforwet_100		Forested wetlands with a 100m buffered zone.

Paforwet_sm		Forested wetlands with 40m, 70m and 100m buffer zones.
 
Pastrdist		Streams and other water with a 100m buffered zone.

Pastrdist_sm		Streams and other water with 40m, 70m and 100m buffer zones.

Patopopo		Topographic position layer.  Based on the DEM the layer identifies ridge-top, side-slope and valley-bottom categories.