The records below were provided by contributors to Cemetery Records Online. All other metal markers have no names.
Boulder is a county seat and was named for the massive stones strewn about the valley.
The town was established in the early 1860's as a stage station on the Fort Benton-Virginia City route. Later it became the trading center for a mining and agricultural area, once serving the mining districts of Elkhorn, Comet, and Baltimore. The great Northern Railway came through in 1888. The state schools for the deaf, blind, and feebleminded were established here in 1892. The town was first called Boulder Valley, and its first post office operated under that name 1866-97.