The La Mesa Watershed is a natural drainage area located in San Diego County, California. It collects rainwater and runoff from surrounding hills and urban areas, directing it into local streams and ultimately into the San Diego Bay. This watershed plays a crucial role in managing water resources and supporting local ecosystems. The watershed is home to various plant and animal species, contributing to the region's biodiversity. It also serves as a recreational area for residents, offering opportunities for hiking, birdwatching, and enjoying nature. Protecting the La Mesa Watershed is essential for maintaining water quality and supporting wildlife habitats.