The Plainview Formation is an Early Cretaceous (Albian) geologic formation of the Dakota Group in Colorado.

[1] Fossil ankylosaur tracks and tracks of Caririchnium sp.

[2] The formation overlies the Lytle Formation and is overlain by the Glencairn Formation and comprises resistant, brown-weathered sandstones, and dark shales and siilstones, also described as bioturbated brownish sandstones with black and grey silty or shaley sandstone intervals.

The formation was deposited in a variety of near-shore and/or marginal marine environments.

The tracks occur in the upper part of an estuarine point bar sequence, overlain by brackish bay or lagoon deposits.