Measuring stream velocity through an augered hole in the frozen St. Croix River, Minnesota
Detailed Description
Hydrologic technician Garret Welsh conducts an Ice Rod measurement through an augered hole in the frozen St. Croix river near streamgage 05341550 in Stillwater, Minnesota. An Ice Rod is a heavy-duty, 1-inch (2.5 centimeter) diameter, lightweight aluminum rod used for suspending ice meters in fast velocities.
Sources/Usage
Public Domain.