When the Columbia River Highway was built in 1921, it was necessary to build two tunnels to get through a high rock point. These tunnels had beautiful views over the river but were always a trouble spot for rockfall so in 1954, a new road was opened near water level and the tunnels were abandoned. In 1995, work was begun to reopen the tunnels for tourist use as the Historic Columbia River Highway Trail with a new surface and rebuilt walls.
Get more details about the trail and hikes here.
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