The San Jacinto River Basin is located in southeastern Texas, primarily within Harris County and Montgomery County. It encompasses the San Jacinto River, which flows into Lake Houston and eventually the Houston Ship Channel. The basin plays a crucial role in local water management and flood control. This area is characterized by diverse ecosystems, including wetlands and forests, which support various wildlife species. The basin is also significant for recreational activities, such as fishing and boating, making it an important resource for the surrounding communities and the environment.