Ranger Sarah learns that three factors are necessary to make these sand dunes. The dunes are formed from the erosion of pink-colored Navajo Sandstone surrounding the park. High winds passing through the notch between the Moquith and Moccasin Mountains pick up loose sand particles and then drop them onto the dunes as a result of the Venturi effect.
Ranger Sarah view the snow covered Bryce Canyon. After the rock was laid down, uplift began as the he Farallon Plate was forced underneath the North American Plate. Over the last several million years the Farallon plate began to break apart allowing heat to rise and elevate the Colorado Plateau to its current height.
Ranger Sarah with another spectacular view. The uplifted Bryce’s rocks eventually reached the “goldilocks zone” - the perfect elevation for the forces of nature to create Bryce’s hoodoos. Now weathering and erosion can go to work.
Ranger Sarah gets her first view from the Piracy Point trail. Here she looks down into Swamp Canyon and the Sheep Creek drainage system to the north and the Willis Creek drainage system that collects run-off south from here.
— at Bryce Canyon National Park.
Early spring at Whittemore Sanctuary, Woodbury, Connecticut, March 29, 2024, 4:45 PM. According to the official map, this pond is named "Pond". Just to the east is a smaller pond named "Pond."
Ranger Sarah has arrived at Agate Fossil Beds National Monument in Nebraska. Known for a large number of well-preserved Miocene fossils. Fossils from the Harrison Formation and Anderson Ranch Formation, which date to the Arikareean in the North American land mammal classification, about 20 to 16.3 million years ago, are among some of the best specimens of Miocene mammals.
Ranger Sarah at strange corkscrew that was once know as the Devil's Corkscrew. The Daemonelix is the corkscrew entrance to the Palocaster's den. Palocasters were small ancient beavers that behaved like modern prairie dogs.
— at Agate Fossil Beds National Monument.
Niobrara River was to small to carve this valley area. River Terraces found in the area indicated that a larger, ancient river once flowed through forming the valley.
— at Agate Fossil Beds National Monument.