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- USGS maps adhere to rigorous accuracy standards to ensure reliable and precise geographic information. The horizontal accuracy standard for USGS 7.5-minute quadrangle topographic maps requires that 90 percent of all tested points be accurate within 1/50th of an inch on the map, which is equivalent to 40 feet (12.2 meters) at a scale of 1:24,000.
www.ncesc.com/geographic-faq/how-accurate-are-usgs-maps/How accurate are USGS maps? - Geographic FAQ Hub: Answers to ...
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How accurate are USGS topographic maps?
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Is an inaccurate map a reliable map?
US Topo maps are as accurate as the data sources used to make them, but because these sources are many and varied, it is not possible to make a single simple statement that the map as a whole meets a particular level of accuracy.
- Map Accuracy Standards | U.S. Geological Survey - USGS.gov
The U.S. Geological Survey (USGS) publishes maps and other...
- Maps and Mapping | U.S. Geological Survey - USGS.gov
The USGS has over a century of experience mapping the...
- Map Accuracy Standards - USGS Publications Warehouse
The U.S. Geological Survey (USGS) publishes maps and other...
- Map Accuracy Standards | U.S. Geological Survey - USGS.gov
Jan 1, 1999 · The U.S. Geological Survey (USGS) publishes maps and other products at high levels of accuracy. Dependability is vital, for example, to engineers, highway officials, and land-use planners who use USGS topographic maps as basic planning tools.
- 10.3133/fs17199
- Map Accuracy Standards
- 1999
The USGS has over a century of experience mapping the landscapes of the United States and continues to provide accurate maps and related information. USGS products can be found online or purchased from the USGS Store.
The U.S. Geological Survey (USGS) publishes maps and other products at high levels of accuracy. Dependability is vital, for example, to engineers, highway officials, and land-use planners who use USGS topographic maps as basic plan-ning tools.
- 37KB
- 2
The U.S. Geological Survey (USGS) publishes maps and other products at high levels of accuracy. Dependability is vital, for example, to engineers, highway officials, and land-use planners who use USGS topographic maps as basic planning tools.
In the United States, standards for accuracy assessment have been developed. The National Map Accuracy Standard (NMAS) provides insurance that maps conform to established accuracy specifications, thereby providing consistency and confidence in their use in geospatial applications.
Jun 19, 2024 · The horizontal accuracy standard for USGS 7.5-minute quadrangle topographic maps requires that 90 percent of all tested points be accurate within 1/50th of an inch on the map, which is equivalent to 40 feet (12.2 meters) at a scale of 1:24,000.
