Following the Overland Expo, we continued our route through Arizona and New Mexico heading toward Colorado. Our route included an unexpected junction with another section of Route 66 before stopping to enjoy the Petrified Forest National Park and some great mountain biking along the way to our first visit to the beautiful mountain town of Telluride, CO (next post).
Petrified Forest National Park in Navajo and Apache counties in northeastern Arizona is known for its large deposits of petrified wood. Downed trees accumulating in river channels about 225 million years ago were buried periodically by sediment containing volcanic ash. Groundwater dissolved silica from the ash and carried it into the logs, where it formed quartz crystals that gradually replaced the organic matter. |
Beginning about 60 million years ago, the Colorado Plateau, of which the park is part, was pushed upward by tectonic forces and exposed to increased erosion. In addition to petrified logs, fossils found in the park have included ferns, and many other plants as well as fauna including giant reptiles, large amphibians, and early dinosaurs. |
As the ground around it erodes away, petrified trees once buried deep become exposed to the elements and often break into smaller pieces. |
"Newspaper Rock" in the Petrified Forest National Park contains more than 650 petroglyph images pecked, carved or etched into the rock by ancestral Puebloan people between 650 and 2000 years ago. |
Chip and Todd getting in some mountain biking at "Phil's World" near Cortez, CO. Our friends Scott and Heather had recently biked there and raved about the "smooth and fast" trails on their blog. These trails were so sweet, we spent an extra day there just to get in more fun! |
Phil's World doesn't have large changes in elevation, but does a great job of making really fun trails through a desert type landscape. |
Shonah enjoying the trails at Phil's world. |
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