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You searched for: Start Over History Remove constraint History Author Hamilton, R.J. Remove constraint Author: Hamilton, R.J. Author United States. Bureau of Reclamation Remove constraint Author: United States. Bureau of Reclamation Subject Caterpillar tractors Remove constraint Subject: Caterpillar tractors Subject State Line Drain (Oregon and California) Remove constraint Subject: State Line Drain (Oregon and California)

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    P-12-200-4132NA Klamath Project - Oregon-California. View of Cat 966-B front end loader used to excavate topsoil. Pile, right center, was placed by loader; December 1975; USBR photo by R. J. Hamilto...
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