Brooks is a small community located in Yolo County, California.
The Quadrangle boundaries are:
N 38º 37’ 30” and N 38º 45’ 00”
W 122º 07’ 30” and W 122º 15’ 00”.
The United States Geological Survey (USGS) has many missions. At one time, a major mission of the USGS was the supplying of topographic maps of the United States on several scales. Our cache series is based on the 7½-minute quadrangle series.
The term quadrangle is used, instead of quadrilateral or rectangle, because the sides of these blocks are curved. The USGS divided the United States into quadrangles that are 7½ minutes by 7½ minutes. Since a degree is divided into 60 minutes, a quadrangle one degree by one degree contains 64 of these quadrangles.