This dataset contains polygons which represent the USGS quarter quadrangle map series.

The National Land Cover Database 2001 land cover layer for mapping zone ak10b was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics...

The National Land Cover Database 2001 Alaska Land Cover Cloud/Shadow Mask for the state of Alaska was produced through a cooperative project conducted by the Multi-Resolution...

This dataset contains polygons which represent the USGS quarter quadrangle map series.

A digital orthophoto is a georeferenced image prepared from a perspective photograph, or other remotely-sensed data in which the displacement within the image due to sensor...