Valles Mines is a small unincorporated community located in St. Francois County, Missouri. The area experiences a humid subtropical climate with hot summers and cold winters. Average temperatures range from the mid-80s Fahrenheit (30°C) in summer to the mid-30s Fahrenheit (1-2°C) in winter.

Hydrologically, Valles Mines is situated near the Big River, a major tributary of the Meramec River. This river system provides recreational opportunities for fishing, canoeing, and kayaking. The Big River is known for its diverse fish population, including bass, catfish, and sunfish.

Outdoor enthusiasts will find plenty of activities in and around Valles Mines. The region offers numerous hiking trails, such as the Big River Trail, which winds through scenic landscapes and provides opportunities for birdwatching and wildlife observation. Additionally, the nearby St. Francois State Park offers camping, picnicking, and swimming in its beautiful lakes.

In conclusion, Valles Mines, Missouri, boasts a humid subtropical climate, proximity to the Big River, and a range of outdoor recreational opportunities, making it an attractive destination for nature lovers and adventurers alike.