1957 Map of Milligan Lakes

About this map

South Park's high-altitude basin reveals a landscape of ranching and early transportation in this mid-century survey. The terrain is defined by the winding paths of Michigan Creek and Jefferson Creek, which feed into the Tarryall Creek system. An Old Railroad Grade cuts across the northern landscape near Michigan Hill, marking the path of former mountain transit lines. Numerous family-named operations like the Slash 6 Ranch, Collard Ranch (Headquarters), and Rocker Seven Ranch dominate the valley floor, illustrating the region's agricultural roots. Resource extraction is noted by the King Mine and areas of Tailings along the gulches, while water management for these high-country operations is evidenced by the Cline Reservoir and various irrigation ditches like the Packer Ditch branching off the primary watercourses.