1922 Map of Shasta Valley Sheet No 3 S

About this map

Yreka Ditch and the surrounding irrigation infrastructure dominate this 1922 advance sheet, reflecting the early 20th-century water management efforts of the Klamath-Shasta Valley Irrigation District. Surveyed by T. H. Moncure in cooperation with the U. S. Reclamation Service, the map highlights the intricate relationship between the local topography and the vital water sources like Yreka Creek that sustained the region. The landscape is marked by distinctive terrain features such as Manzanita and an early Highway route, providing a detailed record of the transport and utility corridors during a period of agricultural expansion in Siskiyou County. This specialized study focuses on elevation and drainage, including specific benchmarks like BM 2838, which served as essential reference points for the engineers and surveyors shaping the valley's development.