Sedimentary rocks are made up of pieces of older rocks (igneous, metamorphic, and sedimentary) and organic remains (shells, bone, etc.). When rocks break apart from erosion they are transported by ...

York County residents often travel somewhere in the world to visit a well-known locality. These locations are often natural exposures of rocks or maybe a combination of the actions of “Mother Nature” ...

During this time, collection visits will be available by appointment and other special access requests will be considered on a case-by-case basis. Please email cumuseum@colorado.edu for more ...