These show the topography and relief of the Precambrian surface of the Cratonic Platform of the United States.
|Date made available||2016|
|Publisher||University of Illinois at Urbana-Champaign|
Marshak, S. (Creator), Domrois, S. (Creator), Abert, C. (Creator), Larson, T. (Creator). (2016): DEM of the Great Unconformity, USA cratonic platform, University of Illinois at Urbana-Champaign. 10.13012/B2IDB-7546972_V1