Fossil hikes and walks in Grand Canyon. Trail of Time: This 2.8-mile walk along the South Rim is a geologic timeline of the canyon’s history. Miller said this is a good place to see a sample of ...

Aug. 21, 2020 — Paleontological research has confirmed a series of recently discovered fossils tracks are the oldest recorded tracks of their kind to date within Grand Canyon National Park. In ...

The Grand Canyon. A fresh analysis of rocks exposed in the side of the canyon is changing an 80-year-old textbook model and our understanding of the Cambrian Explosion.

In Grand Canyon National Park, these vital signs include water quality, bird communities, springs, aquatic macroinvertebrates and upland vegetation and soils. Management of the Outstanding Universal ...

A fossil of a rare 180 million year old mammal relative, Tritylodontid Mammaliaforms, was found at Lake Powell in Utah's Glen Canyon National Park.