2022 Map of Thornton

About this map

The Thornton settlement sits at the junction of the Mokelumne River and Dry Cr, marking a point where the Sacramento Valley transitions into the San Joaquin Valley. This landscape is defined by an intricate network of natural and engineered waterways, including the South Mokelumne River, Snodgrass Slough, and Grizzly Slough. Large land masses like Staten Island and Dead Horse Island illustrate the delta-like character of the region, where roads such as W Peltier Rd and W Woodbridge Rd follow the rectilinear grid of agricultural sections. The presence of the Northwest Main Canal and Upland Canal signifies the intensive water management required for the surrounding Central Valley farmland. Local routes like Jacob Brack Rd and Thornton Rd connect the scattered ranching and farming operations that characterize this productive alluvial plain.