Fact Sheet 057–01
DOQs produced by the U.S. Geological Survey (USGS) are either gray-scale, natural color, or color-infrared (CIR) images with 1-meter ground resolution. They cover an area measuring 3.75minutes longitude by 3.75-minutes latitude or 7.5-minutes longitude by 7.5minutes latitude. Each DOQ has between 50 and 300 meters of overedge image beyond the latitude and longitude corner crosses embedded in the image. This overedge facilitates tonal matching and mosaicking adjacent images.
First posted May 2001
Supersedes FS 039-99—No online version available
Supersedes FS 129-95—No online version available
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U.S. Geological Survey, 2001, USGS Digital Orthophoto Quadrangles: U.S. Geological Survey Fact Sheet 057–01, 2 p., available only online at https://pubs.usgs.gov/fs/2001/0057/.