Skip to main content
U.S. flag

An official website of the United States government

GIS Data

USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, LandsatLook, and much more. Explore GIS Data Maps. 

Filter Total Items: 9498

Engineer special study of the surface of the moon

The study is based on a photogeologic analysis using stereoscopic vision to examine photographs which have been matched to select libration pairs approximately in the same lunar phase.