Roberts Island (California)

Roberts Island is an island in the San Joaquin River delta, in California.^{[2][3][4][5][6][7][8][9]} It is part of San Joaquin County, and managed by Reclamation Districts 544 (Upper Roberts Island), 524 (Middle Roberts Island) and 684 (Lower Roberts Island).^[10] Its coordinates are 37.9049250°N 121.3852250°W / 37.9049250; -121.3852250 (Roberts Island).^[1]

Roberts Island

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Geography
Location	Northern California
Coordinates	37.9049250°N 121.3852250°W / 37.9049250; -121.3852250 (Roberts Island)[1]
Adjacent to	Sacramento–San Joaquin River Delta
Administration
United States
State	California
County	San Joaquin