2011 Map of Grannis

About this map

The Shields River valley defines the southwestern corner of this Montana landscape, where the settlement of Grannis sits near an intricate network of irrigation channels. Agriculture and ranching dictate the human footprint here, evidenced by established family holdings like Bohleen Ranch, Bonhomme Ranch, and Hetzel Ranch. Water management is central to the area's development, with the Palmer Ditch and Lower Shields Valley Ditch drawing from the river to support local operations. To the north and east, the terrain rises into the foothills, marked by prominent features such as Rattlesnake Ridge and Sheep Mountain. Numerous seasonal and perennial waterways, including Adair Creek, Bullrun Creek, and Tobin Creek, carve through the heights, connecting the uplands to the primary river drainage below. This survey captures a moment in the modern ranching era of Park County, showing the persistent relationship between these high-plains water sources and the land.