grant-kohrs-ranch | MT | Find park

The front portion of the ranch house was originally built by Canadian fur trader Johnny Grant in 1862.

The rear portion of the ranch house was an addition put on by Conrad Kohrs in 1891.

Deer Lodge Mountain rises up over the pastures of Grant-Kohrs Ranch National Historic Site.

Deer Lodge Mountain, and the rest of the Flint Creek Range, directly influence the weather in the valley below.

Fenced green pasture in front, 3 ranch buildings across center, blue sky with large white clouds.

Many people are surprised by the first glimpse of the historic ranch buildings.

Herd of cattle moving from back right to front left in front of historic buildings

The ranch cattle herd contains Hereford, Shorthorn and Texas Longhorn, which were popular breeds during the Open Range Cattle Era

Historic buildings surround fenced pasture, cattle being moved by cowboy on horseback toward viewer.

The American Cowboy developed during the Open Range Era and became a cultural icon.

Physical Address:

251 Grant Circle

Deer Lodge, MT 59722

Mailing Address:

266 Warren Lane

Deer Lodge, MT 59722

contact-details

Phone Number: 4068462070 Voice
Phone Number: 4068463962 Fax

Email Address: grko_interpretation@nps.gov
Description:

Fees

Entrance Fees

Entrance Passes

Wide open spaces, the hard-working cowboy, his spirited cow pony, and vast herds of cattle are among the strongest symbols of the American West. Once the headquarters of a 10 million acre cattle empire, Grant-Kohrs Ranch National Historic Site preserves these symbols and commemorates the role of cattlemen in American history.

park designation:National Historic Site

Directions:

Arriving from the east: Take Interstate 90, exit 187. Drive through town, approximately 2.5 miles. Turn left onto Grant Circle and enter the park. Arriving from the west: Take Interstate 90, exit 184. Turn right. Drive approximately 3/4 of a mile. Turn right on to Grant Circle and enter the park.

For detailed directions, please visit this link.

Directions

Operating Hours:

Historic Area Operating Hours

Hours for the main historic area of Grant-Kohrs Ranch, the Visitor Center and Interpretive Ranger programs.

Exceptions:

Thanksgiving (November 27, 2025 - November 27, 2025)

Christmas (December 25, 2025 - December 25, 2025)

New Year's Day (January 1, 2026 - January 1, 2026)

Summer Hours (May 25, 2025 - September 1, 2025)

Weather Information:

Spring: Temperatures can fluctuate greatly. Sub-freezing temperatures in the morning can give way to mild days. Snow in early spring, rain in late season. Summer: Temperatures can average 70-80 F, but can reach highs of 100 F. Rain rare. Dry and hot. Fall: Temperatures can fluctuate greatly. Sub-freezing mornings can give way to mild days. Rain in early fall likely. Winter: Temperature can fall to -30 F, with highs of 10-20 F. Snow is possible. Cold weather gear is highly recommended.