Near Doublespring Pass Road (Forest Road 116) near Forest Road 679, on the left when traveling east.
There are no records from explorers’ journals or pioneers’ memories of earthquakes occurring in this area. Scientists have not detected activity in recent time. But, old fault scars indicate that earthquakes occurred before. Geologists recognized . . . — — Map (db m109708) HM
Near Doublespring Pass Road (Forest Road 116) near Forest Road 679, on the left when traveling east.
• The scarp before you extends for 21 miles, paralleling the mountain front. In some places, multiple scarps formed.
• Ground motion, or “ground roll,” did $15,000,000 damage to roads and buildings in the Challis and Mackay areas. . . . — — Map (db m109709) HM
Near Doublespring Pass Road (Forest Road 116) near Forest Road 679, on the left when traveling east.
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 . . . — — Map (db m109706) HM
On U.S. 93 at Doublespring Pass Road, on the right when traveling north on U.S. 93.
On October 28, 1983, a major earthquake fracture, 26 miles long and 7 miles deep, surfaced as Lost River Valley slid away from Mount Borah.
During that rock shift, Mount Borah’s ridge front rose about 6 inches, while this valley . . . — — Map (db m109704) HM
On Custer Street (U.S. 93) near Capital Avenue, on the right when traveling north.
Cliff City and White Knob were bustling mining towns established west of Mackay in the late 1800s.
After copper was discovered in the White Knob Mountains in 1879, Cliff City and White Knob sprang up to support the mines. The boomtowns . . . — — Map (db m140071) HM
On U.S. 93 at Fish Hatchery Road, on the left when traveling north on U.S. 93.
Known as Goddin's River in the days of the fur trade. This stream originally was named for the trapper who discovered it.
Thyery Goddin, a prominent Iroquois who explored this river in 1819 or 1820, had come here with Donald Mackenzies fur . . . — — Map (db m109705) HM
On U.S. 93 at Doublespring Pass Road, on the right when traveling north on U.S. 93.
Idaho’s highest peak, 12,662 feet, is named for William E. Borah, who served in the United States Senate from 1907 until his death in 1940.
Ten or a dozen large but shallow inland seas have covered this area in the past billion years. They . . . — — Map (db m109703) HM
On Custer Street (U.S. 93) near Capital Avenue, on the right when traveling north.
Mt. McCaleb, named for the Civil War veteran and local merchant, Jesse McCaleb, is the prominent 11,683 ft. peak visible north of MacKay.
In 1878, while helping escort supply wagons and arms to Challis, McCaleb and 13 others were attacked by . . . — — Map (db m140070) HM
