La Sauses Member of Conejos Formation (CO)
early Tertiary (early Oligocene; Rupelian)
[Type locality]: cliff-forming exposures along entire length of Wildhorse Ridge [author's name for cuesta in northern part of eastern San Luis Hills], east of town of La Sauses [Lasauses], Costilla Co., southwestern CO (Burroughs, 1971; see fig. 1).
[Exposures approx. Lat. 37 deg. 15 min. 45 sec. N., Long. 105 deg. 43 min. 00 sec. W., Lasauses 7.5-min quadrangle.]
San Luis basin
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