1873 Map of San Joaquin, Sacramento & Tulare Valleys by the Ca Board of Irrigation

25" x35" color lithographic map in fine condition. Fold lines as issued, state document relating to State commission on water management as a whole for the first time with federal and state authorities involved. Excellent early document relating to California's water . Framed in the conservation standard for use as an estate purchase , no shipping available framed, only local pick up or shipped unframed for security of the map. Legend shows catchment locations, names, square miles of watershed per catchment and mountains sizes feeding said watersheds. Unique and early water data still used as a baseline for California water.