earth notes

Smithsonian Institution Archives

Several years after John Wesley Powell navigated the Colorado River in 1869, he sent two brothers to the Southwest—not to run rapids but to research the region’s archaeological sites and Indian  pueblos. 


Earth Notes: Osprey Nest Platform

Apr 19, 2017
Rose Houk

Around Earth Day, Flagstaff residents visiting Frances Short Pond near downtown have a good chance of seeing an osprey, or maybe two, perched on a nest platform. 


Kayla Lauger

When is a house a home? If you’re a spider, it doesn’t need to be a mansion. It can be as simple as a clump of leaves caught in a tree above a stream


Jenny Mackness

Have you ever looked closely at a spider’s web rimmed with raindrops or frost? So delicate, these marvels might not look like they’re made from one of the strongest materials on the planet. 


Dinosaur National Monument, NPS

Many millions of years ago, dinosaurs of all shapes and sizes roamed the Colorado Plateau. They were common in the region when the landscape was mostly wet and tropical. We know this through fossil evidence, plus petroleum deposits created through the decay of ancient plants and animals.


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