Stale — older than 1 week USGS

Little Colo. River At Grand Falls, Ariz.

Updated July 3, 1995 at 06:45:00 AM · Approved · Site 09401000

Current conditions

Historical trends

Hourly measurements

Detailed readings by hour, organized by day

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Official USGS page: https://waterdata.usgs.gov/monitoring-location/USGS-09401000/ (may include cooperator information)