1978 Map of Isleton

About this map

The Sacramento River delta's complex network of islands and waterways is captured here in the late 1970s, illustrating a landscape defined by both natural hydrology and human engineering. Isleton sits along the southern bank of the Sacramento River, while the historic community of Locke and the neighboring town of Walnut Grove anchor the northeast corner near the Delta Cross Channel. The intricate system of sloughs, including Steamboat Slough and Georgiana Slough, separates large agricultural tracts like Grand Island and Tyler Island. Local transportation relies on river crossings such as the Howard Landing Ferry and several landings including Walker Landing. The presence of the Rio Vista Gas Field and the West Thornton - Walnut Grove Gas Field highlights the subsurface energy resources that coexist with the levee-protected farmland of this river-driven economy.