
Initial Point serves as the surveying anchor for this high desert landscape, marking the intersection of the principal meridian and base line for Idaho's land system. Geographer A.H. Thompson and topographer W.T.Griswold recorded the terrain as it stood in the early 1890s, dominated by the deep canyon of the Snake River carving between Ada and Owyhee counties. The Oregon Short Line Railroad provides the primary infrastructure corridor in the north, connecting small settlements like Kuna, Mora, and Bisuka.
18 named features on this map. Tap any name to fly to it.
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6 editions found
1892 · Mountain Home
USGS Topo · 1:125,000
1892 · Boise
USGS Topo · 1:125,000
1892 · Bisuka
USGS Topo · 1:125,000
1892 · Silver City
USGS Topo · 1:125,000
1893 · Mountain Home
USGS Topo · 1:125,000
1894 · Bisuka
USGS Topo · 1:125,000
1894 · Silver City
USGS Topo · 1:125,000
1894 · Idaho Basin
USGS Topo · 1:125,000
1897 · Boise
USGS Topo · 1:125,000
1898 · Nampa
USGS Topo · 1:125,000