1964 Map of Castroville

Resource extraction and water management are evident across the quadrangle, from the Oil Wells found in the southeast to the complex of pipelines and a siphon crossing Chacon Creek. Prominent landmarks like California Hill and Clousley Hill rise above the surrounding pastures, while the Chacowalla Water Hole provides a specific look at local water sources in this semi-arid environment. The presence of Medina Valley Park and various gravel pits suggests a mix of growing recreational space and active industrial use as the area developed beyond its early colonial roots.