Wayne's Word Index Noteworthy Plants Trivia Lemnaceae Biology 101 Botany Scenic Wildflowers Trains Spiders & Insects Search Joshua Tree National Park April 2018 Part 1     Home       Part 1       Part 2       Part 3       Part 4       Part 5       Part 6       Part 7       Part 8       Part 9   Scenic Images (1) Joshua Tree National Park Mt. San Gorgonio In Distance (Highest Mtn In S. California 11,503 ft.) Click On Image To Return To Joshua Tree National Park Home Page. Massive Rock Formations This remarkable landscape dates back more than 100 million years. It is formed by molten plutonic rock from deep below the earth's surface. It is a type of granitic rock called monzogranite. A favorite place for rock-climbers, it is also home of the beautiful granite spiny lizard (See Part 6: Animal Images). Interesting Rock Shapes: How About A Primate Skull? All images on this page copyright © W.P. Armstrong