Constant Guyot built a toll road across the Continental Divide near here in 1867. Because it provided the most direct way over the mountains between Deer Lodge and Helena, it was a popular route for travelers. Guyot's wife ran a two-room . . . — — Map (db m127754) HM
From this point west to the Idaho line, US Highway 12 and I-90 follows the route of a military road located and constructed in Montana between 1859 - 62 by Captain John Mullan. The road was 624 miles long and connected Fort Benton, Montana, with . . . — — Map (db m71950) HM
From this overlook you can see areas of very old rock and nearly relatively young deposits. The Big Belt Mountains on the skyline east of Helena Valley in the far distance are primarily composed of Belt Supergroup rocks deposited about 1.4 billion . . . — — Map (db m188669) HM
