Joshua Tree Poster Arizona America’s first transcontinental railroad was

America’s first transcontinental railroad was completed in 1869

In their honor

and in 1937 Shenandoah National Park became the first national park to reach one million annual visitation

“The Wave” a 62- foot

The California Trail Interpretive Center showcases the history of nearly 250

Joshua Tree Poster Arizona America’s first transcontinental railroad wasDescription 14" x 22" poster Interpretive Copy The Joshua Tree (Yucca brevifolia) Most Joshua trees grow wild in the Mojave Desert. Their southernmost strandhere in Joshua Tree National Park marks the transition from Mojave Desert to the Colorado Desert (a part of a larger Sonoran Desert).