Existing comment:
[Note the hole in the mountain wall. The tunnel runs behind it.]
Impassable Barrier:
In the 1920s, this end of the canyon appeared to be a dead end, an impassable barrier to transportation. To highway engineers, the toughest challenge was the cliff above. Their solution: a one-mile tunnel behind the cliff face.
When tunnel and highway were completed in 1930, they opened the region to motor tourism, linking Zion to Bryce and the Grand Canyon's North Rim. Now the tunnel itself has become a kind of barrier, as today's RVs and tour buses are too large for two-way traffic within the tunnel. Expect short delays as oncoming traffic is held to allow oversize vehicles to pass through. |