2014 Map of Grannis

About this map

Grannis and the surrounding ranchlands of Park County are defined by a sophisticated network of irrigation infrastructure and seasonal watercourses. The lower Shields Valley relies on the Lower Shields Valley Ditch and the Palmer Ditch, which redirect water from the Shields River to support agriculture across this high-elevation terrain. The landscape is structured by significant geological landmarks, including Cedar Butte and the prominent spine of Rattlesnake Ridge to the east. Several named drainages, such as Bullrun Cr, Adair Cr, and Fiddle Cr, carve through the townships, while localized water sources like 01N10E35B Spring indicate the critical importance of water rights in this rural Montana setting. The map captures a moment of modern land management within the historic township and range system, showing how cattle ranching and homesteading legacies continue to shape the physical layout of the valley.