• Image of bunkhouse row.

    Grant-Kohrs Ranch

    National Historic Site Montana

Environmental Factors

Exposed mine tailings - 'slickens'

Exposed mine tailings - 'slickens' with high metals concentrations and acidic soils.

Environmental factors shape the landscape and habitats of Grant-Kohrs Ranch National Historic Site and the Deer Lodge Valley. Long before humans arrived geological processes, weather, and fire shaped this environment. More recently, natural processes have been affected by human activity. The valley has experienced many impacts including mining, ranching, and the development of towns and cities.

Several environmental factors are being monitored by National Park Service staff and researchers from other agencies or universities. The goal of montoring is to gather information for its use in science-based decision making and to ultimately preserve the park's resources.

Did You Know?

Cattle and horses grazing lush Montana grasses.

“Range Wars” between cattlemen and sheep growers didn’t happen in Montana. For a time, Montana cattlemen found it profitable to raise sheep. Then, when cattle became profitable again, they switched back to cattle. Montana ranges support a wide variety of grazing animals, both wild and domestic.