
The Bitterroot Range forms a massive natural spine across this mid-century survey, dividing the high country of the Bitterroot National Forest and Clearwater National Forest. Along the eastern edge, the Bitterroot River valley is dotted with established settlements like Stevensville, Victor, and the county seat at Hamilton. This corridor shows a concentration of agricultural and civic development, including the fish hatchery and various ranger stations, contrasting sharply with the wilderness to the west. In the northern reaches, Missoula serves as a major hub where the Clark Fork meets the rail lines of the Northern Pacific and the electrified Chicago Milwaukee Saint Paul and Pacific. Historic routes like the Lolo Trail and Nez Perce Trail wind through the interior, marking traditional passage through terrain defined by peaks such as Saint Marys Peak and El Capitan.
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This is the sole edition of this map. No revisions or reprints were ever made.
1901 · Hamilton
USGS Topo · 1:125,000
1903 · Bonner
USGS Topo · 1:125,000
1909 · Sapphire
USGS Topo · 1:125,000
1911 · Lolo
USGS Topo · 1:250,000
1912 · Missoula
USGS Topo · 1:125,000
1913 · Lolo
USGS Topo · 1:250,000
1914 · Avery
USGS Topo · 1:125,000
1917 · Avery
USGS Topo · 1:125,000
1918 · St Regis
USGS Topo · 1:125,000
1919 · St. Regis
USGS Topo · 1:125,000