Manuscripts
A wrecked boiler at the mouth of Slickhorn Canyon. Boiler was being lowered to bottom of San Juan Canyon and when near bottom broke loose and rolled to bottom
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Wreck of the Powell, beginning sequence "Lining the Powell before it broke loose"
Manuscripts
mssMarston papers P057/B01/0031
Jack near the bottom of Slickhorn Rapid. Jack Wimpress in the "Black Submarine" or "Ugh Ptui."
Manuscripts
mssMarston papers V125/0114
Ruin at mouth of Copper Canyon, San Juan River. Copper Canyon; Mile 46.7
Manuscripts
mssMarston papers V125/0128
