30 Meter Resolution United States Digital Elevation Models
Digital Data Services, Inc. offers 30 meter Digital Elevation Models, a compilation of data from a variety of existing high-precision datasets such as LiDAR data, contour maps, and other sources which were reorganized and combined into a seamless dataset. Coverage is for the entire United States.
Alaska DEM data is delivered at 60 meter resolution and is sold as part of the 30 meter resolution dataset.