The Lavaca watershed, also known as HUC 12100101, covers an area of approximately 904 square miles in Texas, USA. It is primarily an agricultural region and is known for its rice cultivation. The watershed is fed by several creeks and streams, including the Little River, which supplies water to Lavaca Bay. The area experiences a subtropical climate, with hot summers and mild winters. The watershed receives an average of 40 inches of rainfall annually, with the heaviest precipitation occurring in May and June. The region is also prone to flooding, particularly during hurricanes and heavy rainfall events. The Lavaca River is an important source of irrigation water for the region's farmers, and several reservoirs have been constructed throughout the watershed to regulate its flow. The water in these reservoirs is used for recreational purposes, including fishing and boating. Overall, the Lavaca watershed is an important resource for the region, providing water for irrigation, recreation, and wildlife habitat.