2020 Map of Johnson Reservoir NE

About this map

Big Sheep Mountains dominate the western portion of this Dawson County landscape, marking a prominent topographic break in an otherwise drainage-rich terrain. This 2020 survey illustrates a complex network of seasonal and perennial waterways that define the local geography, including the winding course of Thirteenmile Cr and the headwaters of Lower Sevenmile Cr. The map captures a largely rural expanse structured by the Public Land Survey System, with township boundaries such as t20n r52e and t19n r53e providing a grid-like framework over the natural relief. Transportation is confined to established corridors like Hwy 470 and a series of numbered section roads, including RD 412 and RD 431, which connect remote ranching or agricultural sites. Researchers can also locate specific water sources such as the 20N53E31BCB_01 Spring in the eastern hills.