What is a quadrangle on a map?
A “quadrangle” is a topographic map produced by the United States Geological Survey (USGS) covering the United States. The maps are usually named after local physiographic features. The shorthand “quad” is also used, especially with the name of the map; for example, “the Ranger Creek, Texas quad”.
Where can I find USGS quadrangle?
Go to https://store.usgs.gov/ and click on “Map Locator”. To use the map locator to find map products use the search bar or drop a pin by double clicking on the map view.
Why is the map called a 7.5 Quadrangle map?
Most USGS map series divide the United States into quadrangles bounded by two lines of latitude and two lines of longitude. For example, a 7.5-minute map shows an area that spans 7.5 minutes of latitude and 7.5 minutes of longitude, and it is usually named after the most prominent feature in the quadrangle.
How many miles is a quadrangle?
In the United States, a 7.5 minute quadrangle map covers an area of 49 to 70 square miles. As a specific surveying term, a quadrangle is the basic subdivision of the United States Public Land Survey System.
Why is it called a quadrangle?
Quadrangle and its nickname, quad, were 1800’s Oxford slang, from the Latin root quadri, or “four.”
Where can I find a quadrangle name?
Map Title (upper right corner of map) This corner section provides the name of quadrangle, state (and sometimes the county) where the quadrangle is located, and map series. Quadrangles are often named after a prominent town or feature that is in the quadrangle.
How do I download maps from USGS?
USGS Staged Data – Direct links to files on a USGS server. Navigate to the appropriate theme folders to access staged products for download. Download Manager Tool/uGET – For batch downloads of files using URLs saved in a text or CSV file from The National Map Downloader. TopoView – For topographic map downloads only.
Can you print USGS maps?
National Geographic is allowing everyone to easily download any USGS 7.5 minute topo map in the continental U.S. as a multi-page PDF that can be printed on letter size paper on any printer.
What is a 15 minute quadrangle map?
Maps in the 15 Minute Quadrangle series were made in the period between the 1890s and the 1950s. They were created by the Map Division of the United States Geological Survey (USGS). The purpose for developing this series was to provide a detailed topographic map coverage of the entire United States at the same scale.