De France Reservoir, located in Weld County, Colorado, is a privately owned earth dam structure built in 1883 primarily for irrigation purposes. The reservoir has a storage capacity of 350 acre-feet, with a normal storage level of 260 acre-feet and a surface area of 25 acres. Situated along the Little Thompson River, the dam stands at a height of 15 feet and stretches for 960 feet in length.

Managed by the Colorado Department of Water Resources, De France Reservoir is subject to state regulatory oversight, including permitting, inspection, and enforcement measures to ensure its safety and compliance with regulations. Despite being classified as having a low hazard potential and a satisfactory condition assessment, the reservoir is considered to have moderate risk (rated 3 out of 5) based on a risk assessment conducted.

The surrounding area benefits from the reservoir for irrigation, fire protection, stock watering, and small fish pond purposes. The dam's uncontrolled spillway with a width of 10 feet can handle a maximum discharge of 450 cubic feet per second. With its historical significance dating back over a century, De France Reservoir remains an important water resource in the region for both agricultural and recreational activities.