Sand Creek is a stream noted for the "most spectacular examples of cross-bedded sandstone and topple blocks in North America".

[2] Sand Creek flows from the Laramie Mountains in Larimer County, Colorado into Albany County, Wyoming where it joins the Laramie River.

[1] The area where Sand Creek crosses the border between Colorado and Wyoming (40°59′49″N 105°46′14″W / 40.99694°N 105.77056°W / 40.99694; -105.77056) was designated a National Natural Landmark in 1984.

[2] "Sand Creek National Natural Landmark".

You can help Wikipedia by expanding it.This article related to a river in Colorado is a stub.