Rock Layers: Timeline of Life on EarthEvolution is a complicated subject. While everybody understands that black bears are related to grizzly bears and we can even figure they are related to extinct bears, lots of people wonder how scientists can be so su
The Mysterious Sailing Stones of Death Valley. Geologists have yet to explain how rocks weighing upwards of 100 pounds seem to glide across the desert floor leaving tracks and indentations in their wake. "How about a very strong desert storm?
Death Valley National Park has announced plans to open two additional campgrounds for the winter season. Texas Springs Campground will open on November while Sunset Campground opened on November Both campgrounds will remain open until the middle of April.
Moqui Marbles, Utah Iron Oxide concretions (Moqui Marbles) Moqui Marbles, Hematite Concretions, from the Navajo Sandstone of Southeast Utah. The Navajo Sandstone is also well known among rockhounds for its hundreds of thousands of Iron Oxide concretions