1978 Map of Rio Vista

About this map

Rio Vista sits at a critical junction of the Sacramento River and the complex waterway network of the California Delta. This late-1970s survey captures the region's reliance on hydraulic engineering and energy extraction, evidenced by the extensive Lindsey Slough Gas Field and Rio Vista Gas Field markers. The landscape is defined by human-altered hydrology, where the Yolo Bypass and the Sacramento River Deep Water Ship Channel navigate through low-lying tracts like Ryer Island and Grand Island.