The San Luis Rey Escondido Watershed, located in southern California, covers an area of approximately 302 square miles. The watershed is comprised of several subwatersheds that contribute to the San Luis Rey River. The hydrology of the area is characterized by a Mediterranean climate, with most rainfall occurring during the winter months. The watershed receives significant snowfall in the nearby mountains, which contributes to the surface water flow and provides a source of water for local reservoirs. The reservoirs within the watershed are primarily used for water supply and recreation. The area experiences a variety of climatic conditions, including high temperatures in the summer and occasional winter storms. Over the past few decades, the region has experienced a trend towards drier conditions, which has had an impact on water availability for local communities and ecosystems.