Manuscripts
Near view of gypsum plug shown in Plate 4A looking downstream in tributary canyon. The contact of the gypsum cuts across Hermosa strata at the right. Side canyon is at Mile 206.85 in Cataract Canyon
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Gypsum plug of paradox formation in side canyon at Mile 206.85
Manuscripts
mssMarston papers V009/0023

Up from approximately Mile 206.3 to the side canyon at Mile 206.85 and the gypsum plug
Manuscripts
mssMarston papers V009/0059

Up river from Mile 206 to the side canyon at Mile 206.85. The gypsum plug is right and below center
Manuscripts
mssMarston papers V009/0066

Mary Beckwith in the stream cut through the gypsum plug at Mile 206.85 left bank
Manuscripts
mssMarston papers V009/0027

