1918 Map of Powell Slough

About this map

Colusa sits at a bend of the Sacramento River in this 1918-era survey of the Central Valley. The landscape is defined by its complex hydrological management, featuring a dense network of watercourses and early infrastructure like the Cheney Slough and Irrigation Company Canal and the Old Davis Levee. These features reveal the historical efforts to reclaim and irrigate the fertile basin lands for agriculture. In the northern section of town, a small Cem is noted near the riverbank, providing a point of interest for genealogists tracking early residents. Beyond the immediate town site, the map tracks the wandering paths of Powell Slough and Hopkins Slough through the Colusa and Jimeno land grants, showing how the natural drainage of Cortina Creek interacted with the growing grid of county roads and the Colusa and Lake route.