Gilpin County in the north central part of the State, upon the eastern slopes of Front Range; bounded on the north by Boulder County,
on the east by Jefferson County, on the south by Clear Creek County, and on the west by Grand County.
Its area is 130 square miles, of which 3 per cent, or 2,110 acres, were under cultivation in 1900.
The population in 1900 was 6,690; and of Central City, the county seat, 3,114. In 1900 the average magnetic declination was 13 degrees 31' east.
The mean annual rainfall is about 15 inches, and the mean annual temperature 40 degrees to 45 degrees.
[Congressional Edition, 1906; submitted by cddd]