Archived readings: these values were captured from USGS on July 20, 2026 and are not current conditions.

USGS station 09380000

Colorado River at Lees Ferry, AZ

Marble Canyon, Arizona36.8643, -111.5879America/Phoenix

Available parameters

Recorded observations

Streamflow and gage height are separate measurements and are never used interchangeably.

Archived readingProvisional

Streamflow

8,070 ft^3/s

Observed Jul 20, 2026, 11:00 PM UTC at this station

Archived readingProvisional

Gage height

8.08 ft

Observed Jul 20, 2026, 11:00 PM UTC at this station

Archived readingProvisional

Water temperature

19.6 degC

Observed Jul 20, 2026, 11:00 PM UTC at this station

Archived readingProvisional

pH

8.2 pH

Observed Jul 20, 2026, 11:00 PM UTC at this station

Station metadata

Measurement context

Station type
Stream
Timezone
America/Phoenix
Vertical datum
See official parameter metadata

Datum and unit semantics come from the official station and time-series metadata. Elevations from different datums are not compared without documented normalization.

Historical context

Available recorded values

Streamflow: 8,070 ft^3/s (Provisional)

Gage height: 8.08 ft (Provisional)

Water temperature: 19.6 degC (Provisional)

pH: 8.2 pH (Provisional)

No historical percentile is shown because this series does not meet the minimum five-year seasonal baseline.

Related waterbody

Colorado River at Lees Ferry

Dam operations can change flow rapidly. The gauge is authoritative for its observation point but is not a route-specific navigation assessment.

Not a safety determination. This station measures one point. Conditions can differ elsewhere, and a reading alone does not establish activity safety.