Ranger Sarah spots the first set of Petroglyphs. These where made between 400-700 years ago. Stone chisels and hammerstones were used to chip away the desert varnish on the rock to expose the lighter color underneath.
— at Petroglyph National Monument.
Ranger Sarah learns the area is home to the Western Diamondback Rattlesnake (Crotalus Atrox). It is cold and wet out so Ranger Sarah hopes she won't be running into any.
— at Petroglyph National Monument.
Ranger Sarah examines the strange lines in the basalt boulder. The lines in the boulder are a string of small bubbles. These lines were created by sheets or tubes of gases bubbles that were created as the molten lava cooled.
— at Petroglyph National Monument.
Ranger Sarah hike up onto the lava flow. The McCartys Flow is the most recent lava flow in the Zuni-Bandera Volcanic Field, and is one of thes youngest lava flows in the Southwest. It is approximately 3,900 years old.
— at El Malpais National Monument.