| SAN GABRIEL RIVER |
| below Cogswell Dam |
| STATION NO. F209-R |
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| RECORDER: Continuous water stage. |
| METHOD OF MEASUREMENT: Wading or from cable car. |
| DRAINAGE AREA: 41.0 square miles. |
| LOCATION: On the left (northeast) bank of the west fork of the San Gabriel River approximately 7 miles above junction of the east and west forks and 0.5 mile downstream from Cogswell Dam. Elevation of zero gage is height 2083.37 feet. |
| REGULATION: 40.4 square miles regulated by Cogswell Dam, 0.6 square mile unregulated. |
| DIVERSION: None. |
| CHANNEL: Sand,gravel, and boulders. |
| CONTROL: Concrete control with low flow notch about 35 feet below the station. |
| LENGTH OF RECORD: October 1, 1933 to October 1, 1967, and from October 1, 1988 to date. |
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