Manuscripts
Grand Canyon at Spencer Creek, Mile 246
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The combined Wright-Rigg and White-Pierce parties; Spencer Creek, Mile 246
Manuscripts
mssMarston papers V098/0108

Combined Wright-Rigg and White-Pierce parties; Spencer Creek, Mile 246
Manuscripts
mssMarston papers V098/0109
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Spencer Canyon; Lava Cliff Rapid - Mile 246-247
Manuscripts
Professional and personal papers of Otis R. Marston and his collection of the materials on the history of Colorado River and Green River regions.
mssMarston papers

The combined Wright-Rigg and White-Pierce parties. Spencer Creek, Mile 246
Manuscripts
mssMarston papers V185/0047

Combined Wright-Rigg and White-Pierce parties. Spencer Creek, Mile 246
Manuscripts
mssMarston papers V185/0048
