EtichettaIntroduction; Explorations west of Glen Canyon; Estrada of Escalante; Fremont Expeditions; Wheeler Survey; Powell Survey; Macomb Survey; Looking southward across the San Juan River Macomb saw:; Hayden Survey; More recent surveys
Comprende: Introduction; Explorations west of Glen Canyon; Estrada of Escalante; Fremont Expeditions; Wheeler Survey; Powell Survey; Macomb Survey; Looking southward across the San Juan River Macomb saw:; Hayden Survey; More recent surveys, introduction; explorations west of glen canyon; estrada of escalante; fremont expeditions; wheeler survey; powell survey; macomb survey; looking southward across the san juan river macomb saw:; hayden survey; more recent surveys
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