red beds, dipping bedding, Precambrian sedimentary
https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png00Marli Millerhttps://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.pngMarli Miller2017-11-05 05:32:062017-11-06 07:17:55Grinnell Fm and Clark Fork, Montana (vertical)
