1984 Map of Alta Creek

About this map

The Cheyenne River and its varied tributaries dominate this high plains landscape in eastern Wyoming, where the drainage patterns of Dry Fork and Alta Creek reveal a complex system of seasonal waterways. The terrain is defined by deep incisions like Calamity Gulch and Flat Gulch, which cut through the open rangeland characteristic of Converse County. At the time of this 1970s field check, the area remained largely undeveloped, dominated by the natural hydrology of Lonetree Creek and Bear Creek. The presence of Dilts as a named topographical landmark amidst the township lines of T 39 N and T 38 N provides a specific point of reference for land use and ranching history in this corner of the state. The map captures a moment before significant industrial or modern infrastructure altered the drainage basins of the upper Cheyenne River system.