The route takes its number from U.S. Route 97, with which it connects at the international border.
In June 1926, a quarry was developed in the fault scarp east of Lava Butte as a source for paving material for the first The Dalles-California Highway (later U.S. Route 97).
A portion of the highway in California and Oregon is part of the Volcanic Legacy Scenic Byway.
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The small community of Mount Hebron follows the descent from the summit, but is located a couple miles east of the highway.
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The next community located directly on the highway is unincorporated town of Macdoel.
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The entire length of the California portion of US 97 is part of the Volcanic Legacy Scenic Byway.
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US 97 intersects SR 20 near Omak before US 97 crosses the Canadian border and becomes British Columbia Highway 97.
U.S. Route 66 | U.S. Route 1 | U.S. Route 6 | U.S. Route 101 | Route 66 | U.S. Route 30 | New Jersey Route 4 | European route E65 | U.S. Route 40 | California State Route 1 | U.S. Route 1 in Maine | Pennsylvania Route 309 | European route E18 | U.S. Route 23 | European route E4 | U.S. Route 9 in New York | U.S. Route 11 | Pennsylvania Route 82 | European route E70 | U.S. Route 90 | U.S. Route 75 | U.S. Route 61 | U.S. Route 60 | Pennsylvania Route 73 | New York State Route 32 | European route E55 | U.S. Route 80 | U.S. Route 71 | U.S. Route 51 | U.S. Route 22 |
Lenz is an unincorporated community in Klamath County, Oregon, United States on U.S. Route 97, directly east of Crater Lake and 20 miles south of Chemult.