Cross-bedded Cretaceous sandstone, MontanaAugust 31, 2017/in /by Marli Miller sedimentary structures, outcrop, BMMT https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-08-31 21:46:102025-06-22 03:27:55Cross-bedded Cretaceous sandstone, Montana
