Superior in Mineral County, Montana — The American West (Mountains)
A Wonderful Piece of Engineering: The Big Side Cut
Photographed By Barry Swackhamer, May 9, 2018
1. A Wonderful Piece of Engineering: The Big Side Cut Marker
The Mullan Road is carved into the face of the mountains high above the Clark Fork River west of here. Lieutenant John Mullan tried to keep his wagon road as close to the river as possible. But when his work crews ran up against a mountain spur that reached all the way to the edge of the river, he was forced to seek an alternate route. Mullan later wrote that "to make this six-mile cut through rocky spurs was an undertaking that I almost feared to attempt." On May 10, 1860, he assembled his entire work force of 150 citizens and soldiers at the west side of the spur. For the next six weeks, his men dug, whittled, and blasted their way up the mountain side to an altitude of a thousand feet above the river. A premature explosion while clearing a path through the rocks wounded one man and severely stunned another. When completed in June, 1860, the Big Side Cut segment was the most awe-inspiring of the entire 624-mile Mullan Road. A traveler wrote of the Big Side Cut in 1862 that it was "a narrow wagon track which left no room for careless or uncertain driving."Erected by Montana Historical Society.
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Topics. This historical marker is listed in this topic list: Roads & Vehicles. A significant historical date for this entry is May 10, 1860.
Location. 47° 4.566′ N, 114° 46.032′ W. Marker is in Superior, Montana, in Mineral County. Marker is on Interstate 90 at milepost 58. Touch for map. Marker is in this post office area: Superior MT 59872, United States of America. Touch for directions.
Other nearby markers. At least 2 other markers are within 11 miles of this marker, measured as the crow flies. Superior School (approx. 10.1 miles away); Gideon Bibles (approx. 10.2 miles away).
More about this marker. This marker is located at the Quartz Flat Rest Area, Eastbound.
Photographed By Barry Swackhamer, May 9, 2018
2. A Wonderful Piece of Engineering: The Big Side Cut Marker
Credits. This page was last revised on September 7, 2018. It was originally submitted on September 7, 2018, by Barry Swackhamer of Brentwood, California. This page has been viewed 163 times since then and 31 times this year. Photos: 1, 2. submitted on September 7, 2018, by Barry Swackhamer of Brentwood, California.
