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1962 Map of Sandy Mush

Name: 1962 Topographic Map of Sandy Mush
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Sandy Mush Country is defined by a complex hydrology of natural creeks and engineered water management systems in this 1962 survey of the San Joaquin Valley. The landscape is dominated by the seasonal wetlands and riparian corridors of Owens Creek, Duck Slough, and Deadman Creek, which flow toward the marshy expanse of Turner Island in the southwest. The presence of the Merced National Wildlife Refuge underscores the ecological importance of these water bodies, particularly the numerous ponds labeled Duck Pond scattered throughout the quadrangle.

Agricultural development is evident through a grid of rural roads named for local families, such as Casebeer Road, Rahilly Road, and Mattos Road. The Sandy Mush Ranch stands as a primary landmark alongside infrastructure like the Merced Sewage Disposal ponds and the East Side Bypass. This map captures a specific era of California water engineering, showing how the natural sloughs like Chamberlain Slough were integrated with siphons and lateral canals to manage the fertile but arid valley floor.