Bob Fournier measuring the gas-to-water ratio (gas/steam) at drill site Y2 in Yellowstone National Park
Detailed Description
Bob Fournier measuring the gas-to-water ratio (gas/steam) at drill site Y2, near Hot Lake on Firehole Lake Drive in Lower Geyser Basin, Yellowstone National Park, in the late 1960s. USGS Photo.
Sources/Usage
Public Domain.