Keystone Canyon, Natural canyon in Valdez-Cordova Census Area, United States
The three-mile canyon features nearly vertical slate walls rising between 50 to 75 feet high along the Lowe River at 97 meters elevation.
Captain William R. Abercrombie named the canyon in 1898 after Pennsylvania, leading to railroad development attempts and a notable gunfight over construction rights.
The canyon serves as a connection point for the Trans Alaska Military Packtrain Trail, maintaining its role in transportation through multiple generations.
Multiple turnouts along Richardson Highway provide access to viewing points for Horsetail Falls and Bridal Veil Falls, situated 13 miles from Valdez.
During winter months, the waterfalls transform into large walls of frozen ice, creating natural climbing surfaces throughout the canyon walls.
Location: Valdez–Cordova Census Area
Elevation above the sea: 97 m
GPS coordinates: 61.05899,-145.91375
Latest update: March 4, 2025 19:38
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