Mangham, Louisiana is a small town located in Richland Parish in northeastern Louisiana. The town experiences a humid subtropical climate, characterized by hot and humid summers and mild winters. Summers are typically long and hot, with average temperatures reaching the mid-90s Fahrenheit, while winters are mild with average temperatures in the 50s. Mangham receives an average annual rainfall of around 54 inches, with the wettest months being May and June.

In terms of hydrology constituents, Mangham is surrounded by creeks and bayous that contribute to the hydrological system of the area. The Boeuf River, a major watercourse in the region, flows just south of the town.

Outdoor recreation opportunities in Mangham include fishing, boating, and hunting in the nearby waterways and forests. The Boeuf Wildlife Management Area, located a short distance away, offers excellent opportunities for hunting deer, turkey, and small game. Fishing enthusiasts can enjoy angling for various freshwater fish species in the Boeuf River and surrounding water bodies. Additionally, the town's proximity to national forests provides opportunities for camping, hiking, and exploring the natural beauty of the area.