The San Pedro River is a significant waterway located in southeastern Arizona and northern Mexico. It flows northward from its source in the Sierra Madre mountains, eventually joining the Gila River. The river is known for its diverse ecosystems, supporting various wildlife and plant species, making it an important area for conservation. The San Pedro River is also recognized for its historical importance, as it has been a vital resource for indigenous peoples and early settlers. Today, it is a popular destination for outdoor activities such as birdwatching, hiking, and fishing, attracting nature enthusiasts from around the region.