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![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/America%27s_Highways_1776%E2%80%931976_-_page_488a.jpg/400px-America%27s_Highways_1776%E2%80%931976_-_page_488a.jpg)
The Bitterroot-Bighole Road in Beaverhead National Forest, Mont., exemplifies the type of forest highway constructed around 1916.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/25/America%27s_Highways_1776%E2%80%931976_-_page_488b.jpg/400px-America%27s_Highways_1776%E2%80%931976_-_page_488b.jpg)
Berthoud Pass crosses the Continental Divide about 60 miles from Denver and was on a line of the main east-west highway in Colorado in 1920. This steam shovel was surplus equipment after WW I and allowed considerable savings in time and costs.
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