The U.S. Army arrived at Valdez during the Gold Rush to build a trail into the interior. They found the Valdez Glacier impassable much of the year. To bypass the glacier, they cut a narrow trail along the walls of rugged Keystone Canyon. The . . . — Map (db m49611) HM
On the far side, just above the water are the remains of the old sled trail, used in the early days. It was cut out of the rock, just wide enough for 2 horses abreast. 200 ft. above can be seen the old goat trail. This road was used till 1945. — Map (db m49610) HM
“The Iron Trail” by Rex Beach describes these events and this area.
This tunnel was hand cut into the solid rock of Keystone Canyon and is all that is left of the “railroad era” when nine companies fought to take advantage . . . — Map (db m49609) HM