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1978 Map of Holt

Name: 1978 Topographic Map of Holt
Creator: U.S. Geological Survey
Published: 1991
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1991

About this map

The low-lying reclaimed lands of the Sacramento-San Joaquin River Delta define this landscape, where complex networks of sloughs and cuts partition the territory into distinct tracts and islands. McDonald Island, Rindge Tract, and Lower Jones Tract are surrounded by water bodies like Whiskey Slough and the Stockton Deep Water Channel. The settlement at Holt serves as a local hub near the McKelumne Aqueduct, while smaller outposts like Union Point and Victoria Island are connected by a system of levees and rural roads such as Sea Level Road.

Resource extraction and transport infrastructure are prominent, featuring a local Gas Field and the U S Naval Reservation along the eastern edge. This era shows the delta as a highly engineered agricultural and industrial space, maintained by numerous pumping stations and the McDonald Island Fy. Named landmarks like Blackslough Landing and schools such as Holt Union Sch and Kingston School provide specific touchpoints for local family history research within this intricate waterscape.