Hydrohistorian
Before the start at Green River City, Wyoming
Library of Congress · 1871 · E.O. Beaman
Library of Congress, Prints & Photographs Division, LC-USZ62-11808 No known restrictions on publication. Archive record ↗ · Rights
Source Archival record · verify at Library of Congress ↗
John Wesley Powell's second river expedition, the morning it left Green River City in 1871. The camera at the left of the frame is the expedition's own; E.O. Beaman, who took this, went down the river with it.
Shows: The beginning of the first systematic survey of the Green and the Colorado -- the river this state still argues over, before anyone had measured it.
What this does not let you conclude: Anything about flows then or now. Powell's party counted rapids and mapped canyons; the gage record that these pages compute trends from starts decades later.
Placed on
- Topic trends · plate
The archive’s record page
The archive’s record did not answer our check on 2026-10-12 (refused automated check, HTTP 403). Our copy above is unaffected; the credit stands. A person will look.