California fish and game biologist checks gill nets placed in the Colorado River. Nets provide data on the number of fish in the area, May 1972
| Uploaded by | U.S. National Archives |
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| Views | 9,836 |
| Date taken | 1972-05 |
| Date uploaded | 2012-05-02 |
| Tags | nara:arcid=547723, usnationalarchives, environmentalprotectionagency, documerica |
| Visibility | public |