Large area in geology or geography
Also known as quad
7 statements · 29% with external sources · numbers in brackets are citations
5 identifiers linking quadrangle across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
A quadrangle is a region of the Earth's surface bounded by two parallels and two meridians. The term is especially associated with topographic maps produced by the United States Geological Survey (USGS) of quadrangles covering the United States. Quadrangle maps are usually named after local physiographic features; for example, "the Ranger Creek, Texas quad".