2024 Map of Johnson Reservoir NW

About this map

The Big Sheep Mountains dominate the eastern landscape of this Montana quadrangle, where the headwaters of numerous drainages carve through the high plains of Dawson County. The terrain is defined by a dendritic drainage pattern, with Bluff Creek and Brush Creek flowing through the central and western reaches, while the North Fork Deer Creek and Middle Fork Deer Creek define the southeast. This contemporary survey illustrates a landscape primarily organized by the Public Land Survey System, with township and range lines such as t20n r51e and t19n r52e providing the structural grid for ranching and land management. The sparse road network, including RD 452 and Fas 470, follows the natural contours of the ridges and valleys, connecting this remote cattle country to the broader region.