2011 Map of Black John Coulee

About this map

Big Dry Creek meanders through this section of Garfield County, defining a landscape of deep drainage basins and scattered water management infrastructure. The map illustrates a ranching-focused geography where named features like Black John Coulee and Russian Coulee converge toward the creek valley. Human presence is marked primarily by small-scale irrigation and stock water projects, specifically Big Bucks Number 10 Dam in the north and Harbaugh Number 1 Dam near the southern boundary. These dams, along with the winding course of Langs Fork, highlight the importance of water capture in this arid Montana environment. Transportation is anchored by the east-west corridor of Route 200, which provides the primary access point to the more remote coulees and creek beds that characterize this terrain.