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The upper cross-bedded sandstone records periods when meandering fluvial channels alternated with sand dunes of a desert environment.

The Burns-Formation can be subdivided in three members: -    A lower unit of cross-bedded sandstone, probably sand dunes formed on a dry lakebed -    A middle unit with finely laminated sandstone, interpreted as ancient sand sheet deposits, overlies the lower unit with an  Rare cross-laminated layers maybe represents sporadic flood events.

The Mesa Verde land mass is composed of cross-bedded sandstone strata laid down by Upper Cretaceous seas.

There were a thousand feet of these sandstone layers, red in all its varying hues, capped by the four-hundred foot cross-bedded sandstone wall, breaking sheer, ranging in tone from a soft buff to a golden yellow, with a bloom, or glow, as though illuminated from within.

This was not unlike the cross-bedded sandstone in colour, but lacked its warmth and richness of tint.