Results: 1 - 3 of 3
Dec 31, 1960
Bulletin
… sandstone member of the Upper Cretaceous Belly River formation. … eastward regression of the late Cretaceous Colorado sea. The …
Dec 31, 1973
Open File Report
… non-marine Tertiary and Upper Cretaceous Paskapoo Formation which … rock to well cemented Lower Cretaceous materials. Deposits …
Jun 30, 1972
Open File Report
… places by large blocks of Lower Cretaceous sandstone (rip-rap) …