Near Mackay in Custer County, Idaho — The American West (Mountains)

Earthquake! - The Stage

Photographed by Barry Swackhamer, June 25, 2017

1. Earthquake! The Stage Marker

Inscription. Idaho is part of the world’s longest mountain chain above sea level. This chain extends from the tip of South America to Alaska’s north coast. The widest section is in the western United States - from the Sierra Nevada to the Rocky Mountains. The Lost River Range is one of many smaller mountain ranges between the Rockies and the Sierra Nevadas.
The earth’s crust between the Sierra Nevada and Rocky Mountains, including the Great Basin, is stretching about 1/2 inch per year. And, it’s getting thinner. Every so often - a few hundred to a few thousand years - the crust breaks along old fracture lines known as “faults.” The valleys drop and the mountains rise, creating the “Basin and Range” landscape you see from here.

Erected by Challis National Forest.

Topics. This historical marker is listed in these topic lists: Disasters • Natural Features. A significant historical date for this entry is October 28, 1983.

Location. 44° 9.858′ N, 113° 52.098′ W. Marker is near Mackay, Idaho, in Custer County. It can be reached from Doublespring Pass Road (Forest Road 116) near Forest Road 679, on the left when traveling

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east. Touch for map. Marker is in this post office area: Mackay ID 83251, United States of America. Touch for directions.

Regionally, this marker is in Central Idaho — Sawtooth Range.

It is also in the American Mountain West.

Globally, it is in North America,

the Rocky Mountains,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Other nearby markers. At least 5 other markers are within 13 miles of this marker, measured as the crow flies: Earthquake! - The Event (a few steps from this marker); Earthquake! - The Results (within shouting distance of this marker); Earthquakes (approx. 2½ miles away); Mount Borah (approx. 2½ miles away); Goodin's River (approx. 12.8 miles away).

More about this marker. This marker is located at a geologic exhibit about 2 1/2 miles on a gravel road from US Highway 93.

Photographed by Barry Swackhamer, June 25, 2017

2. Earthquake! - The Stage Marker

Credits. This page was last revised on November 7, 2017. It was originally submitted on November 7, 2017, by Barry Swackhamer of Brentwood, California. This page has been viewed 467 times since then and 16 times this year. Photos: 1, 2. submitted on November 7, 2017, by Barry Swackhamer of Brentwood, California.