The Sesquicentennial Colorado River Exploring Expedition
Detailed Description
USGS personnel are taking part in this year’s modern expedition that follows Powell’s 1869 journey; they are using 18-foot, inflatable, self-bailing rafts with rigging.
Sources/Usage
Public Domain.
John Wesley Powell Expedition: Then and Now
A Vision of the West from the 19th and 20th Century River Expeditions