Pg. 107, pl. 2. Big Yellow Sandstone Member of Canoe Formation of Big Bend Park Group. Massive yellow sandstone, 30 to 50 feet thick. Basal unit of formation. Has irregular base and occupies channels in Hannold Hill Formation. Underlies unnamed upper part of formation. Age is middle Eocene
Named from Big Yellow arroyo in southern Tornillo Flat, Big Bend National Park, Brewster Co., southwestern TX.
Source: US geologic names lexicon (USGS Bull. 1350, p. 69).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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