Treasure County






Welcome to the Treasure County MTGenWeb project!
This website is up for adoption. 
If you would like to be the new county coordinator for Treasure County,

please contact the MTGenWeb Adopt for details.


Map Showing the Location in the State

Treasure County Vital Records
Clerk & Recorder
P.O. Box 392
Hysham, MT 59038
(406) 342-5547
Treasure County formed in 1919 from Custer County
For earlier records, please visit Custer County


Onsite and offsite links





 Research Links *from 2012

Find A Grave Treasure County

Treasure County at MTGenWeb Photo Project

Goodwin US Patent

1905 Train Wreck near Myers
Treasure County Message Board

WWII Casualties

Land Patent Search from BLM


Graves R Us Treasure County

Chamber of Commerce

PO Box 63
Hysham, MT 59038
ph: 406-342-5676

Hysham Echo


Big Horn       Musselshell     Rosebud     Yellowstone



Fort Cass (1832-1835) Also known as Tullochs Fort, the subpost of Fort Union, was established  by Samuel Tulloch for the American Fur Company to trade with the Crow Indians. Named for Lewis Cass of Michigan, it was located three miles below the mouth of the Big Horn River on the east bank of the Yellowstone River. The fort was surrounded by cottonwood pickets with 2 bastions in the corners. In 1835 it was abandoned and replaced by Fort Van Buren. The site is located in Treasure County, Montana, but there are no remains.


Treasure County last update 11 Nov 2019