2020 Map of Palm Lake

About this map

Sprague Lake dominates the northwest corner of this Adams County landscape, where Harper Island sits offshore near the junction of Sprague Lake Rd and Danekas Rd. The region is defined by its seasonal watercourses and unique scabland hydrology, featuring the eponymous Palm Lake and numerous smaller wetlands fed by Cow Cr and Lugenbeal Cr. Small rural settlements like Ashby and Rockwell anchor the southern portion of the quadrangle, connected by the long-distance Columbia Plateau State Park Trail. This trail follows a historical railroad grade, tracing a path through the eastern section alongside McElroy Creek. The map provides a detailed view of the terrain as it appeared in the early 21st century, illustrating the relationship between the area's geological depressions and its sparse, rail-oriented settlement patterns.