The Snake River carves through the eastern edge of this Ada County landscape, which is defined by high volcanic plateaus and specialized irrigation infrastructure. Settlement is sparse, represented by private holdings such as Gabica Ranch and Montini Ranch, which likely utilize the seasonal flows of Sinker Creek as it descends toward the river. The presence of the Pacific Land Company Dam indicates a history of managed water resources in this arid environment, supporting the agricultural potential of areas like Murphy Flat. Historic transportation routes are visible through the path of the Emigrant Trl, which traverses the high ground near Sinker Creek Butte. This survey provides a clear view of the relationship between local ranching operations and the prominent geological formations of Sinker Butte during the early 21st century.
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This is the sole edition of this map. No revisions or reprints were ever made.
1892 · Bisuka
USGS Topo · 1:125,000
1892 · Silver City
USGS Topo · 1:125,000
1894 · Bisuka
USGS Topo · 1:125,000
1894 · Silver City
USGS Topo · 1:125,000
1898 · Silver City
USGS Topo · 1:125,000
1947 · Wild Horse Butte
USGS Topo · 1:24,000
1948 · Castle Butte
USGS Topo · 1:24,000
1948 · Wild Horse Butte
USGS Topo · 1:24,000
1948 · Sinker Butte
USGS Topo · 1:24,000
1949 · Sinker Butte
USGS Topo · 1:24,000