About Beaverhead County
With an average elevation of over a mile, Beaverhead County sits in the southwestern corner of Montana. Much of its boundary is formed by the Continental Divide. Encompassing an area slightly larger than the state of Connecticut, Beaverhead is the largest county in Montana. However, Beaverhead County is sparsely populated. It ranks 25th of Montana’s 56 counties, having an average population density of less than 1.7 people per square mile. This sparseness in population can be attributed to nearly 2/3 of the land being comprised of public lands including the Beaverhead Deer-Lodge National Forest, Red Rocks Lakes National Wildlife Refuge, Bureau of Land Management and State Lands.
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Latest News
Sweetwater Road Closure 07/27/2026-08/03/2026
PUBLIC NOTICE The Beaverhead County Road Department will be closing a portion of Sweetwater Road from the end of the pavement to Carter Creek Rd the week of July 27th thru August 3rd for maintenance and resurfacing. If you are a property owner in this section of...
Notice Of Finding Of No Significant Impact And Intent To Request Release Of Funds
Notice Of Finding Of No Significant Impact And Notice Of Intent To Request Release Of Funds Date of Notice: June 16, 2026 Name of Responsible Entity (RE): Beaverhead County Address: 2 South Pacific Street, Suite 4 City, State, Zip Code: Dillon, MT 59725 Telephone...
Lemhi Pass Rd and the Scenic Byway are Open!
Lemhi Pass Road and Pioneer Mountains Scenic Byway are now open! Winter closure -- running December 1 to May 15 -- is now over and the road crew has re-opened the roads for the 2026 season.
