Colusa is the county seat for Colusa County. They have a fine
central park for picnics and a theater that hasn’t been chopped up
into mini-screening rooms. The town is located on the Sacramento
River and there is a state park there to allow access to the river
for boating and fishing. The twin water towers, in town, are both
benchmarks.
If you access this cache from the east the pavement ends 120 feet
before you get to the cache. If you access this cache from the west
it is ~7 miles of gravel road from I-5.
The Quadrangle boundaries are:
N 39º 07’ 30” and N 39º 15’ 00”
W 122º 00’ 00” and W 122º 07’ 30”.
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.