Shenandoah Tunnel Poster Nevada a party set out in

a party set out in 1905 to sketch

looking south in Monument Canyon

Long before a network of automobile highways crisscrossed the nation

Most Joshua trees grow wild in the Mojave Desert

1941 to “turn factory wheels to make the lives of men more fruitful

Shenandoah Tunnel Poster Nevada a party set out inProduct Details 14" x 22" poster Interpretive Copy Construction on Marys Rock Tunnel began in 1931 and was considered a monumental feat of engineering. Workers used an average of 1000 pounds of dynamite daily for three months to blast through over 670 feet of solid granite. The novelty of the tunnel drew hundreds of thousands of visitors, and in 1937 Shenandoah National Park became the first national park to reach one million annual visitation.