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New Data and Resources

Land Type Assocations, Tongass National Forest

LTAs charactarize landscapes of 1 to 10 square miles and depict broad patterns of geology, geomorphology, soils and vegetation. They were created by nesting existing R10 soil mapping and the NRCS STATSGO general soil map within the Ecological Subsections....
Wed, 12 Oct 2016 14:24:14 -0800

AK Hydro Barriers to Fish Passage in Southwest Alaska

This layer contains points representing bedrock waterfalls or other permanent in-stream obstacles that are potential barriers to fish passage in Southwest Alaska. Waterfalls less than 1 meter are not mapped nor are those caused only by wood or debris jams...
Tue, 06 Jan 2015 22:54:02 -0900

AK Hydro Streams in Southwest Alaska

This dataset portrays the linear water features in Southwest Alaska. The layer also provides channel type information, stream class information and classifications particular to the State Anadromous Waters Catalog.
Tue, 06 Jan 2015 22:54:01 -0900

AK Hydro Dams in Southwest Alaska

This dataset provides a locational map of dams in Southwest Alaska. The National Inventory of Dams was originally developed by the U.S. Army Corps of Engineers and the Federal Emergency Management Agency. It was developed to track dam related problem area...
Tue, 06 Jan 2015 22:53:59 -0900

AK Hydro Stream Polygons in Southwest Alaska

This dataset provides cartographic representation of "wide" linear water features in Southwest Alaska.
Tue, 06 Jan 2015 22:53:57 -0900

AK Hydro Glaciers in Southwest Alaska

The Randolph Glacier Inventory (RGI) is a globally complete inventory of glacier outlines. It is supplemental to the Global Land Ice Measurements from Space initiative (GLIMS).
Tue, 06 Jan 2015 22:53:52 -0900

AK Hydro Saltwater Inundation Areas in Southwest Alaska

This dataset contains polygons describing high and low tide shorelines with delineated intertidal areas for Southwest Alaska.
Tue, 06 Jan 2015 22:53:50 -0900

AK Hydro Freshwater Lakes in Southwest Alaska

This dataset is used to depict lakes within Southwest Alaska.
Tue, 06 Jan 2015 22:53:49 -0900

Tongass National Forest, SizeDensity, 2014

This data represents the output of the Size Density Model which classifies vegetation into 7 categories. This dataset is a derived data set using Tongass National Forest Covertypes, Tongass National Forest Hydric Soils, NWI Hydric Soils, and Aspect. They ...
Wed, 10 Dec 2014 12:23:20 -0900

Tongass National Forest, Riparian Management Areas (RMA), 2013

This feature class contains polygons which depict Riparian Management Areas on the Tongass National Forest. The script is in T:\FS\Reference\GeoTool\r10_tnf\ToolboxDelineation of the Riparian Management Area (RMA).The GIS polygon layer that depicts the To...
Wed, 10 Dec 2014 12:09:20 -0900