Protected fish include Colorado squawfish, boneytail chub, humpback chub, and razorback sucker. This was home to dinosaurs such as the brontosaurus, diplodocus, and stegosaurus. Contact park office for information. Arrowleaf balsamroot is a common wildflower that blooms in May and June. Willows and cottonwood thrive at the mouth of Sand Canyon.
Lichens grow on rocks and soil, as well as the bark of various trees and shrubs.
Within Dinosaur, Split Mountain and Green River campgrounds are developed. These fee sites can accommodate most recreational vehicles, but there are no hookups or sanitary dump stations. Drinking water, flush toilets, tables, and fireplaces are offered, and firewood can be bought at both. Primitive campgrounds are located at Echo Park, Gates of Lodore, Deerlodge, and Rainbow Park. Drinking water is available at Echo Park and Lodore.