Fawn Lake, also known as Horner Lake, is a man-made reservoir located in Adams, Wisconsin. Managed by the local government, this picturesque lake serves primarily for recreational purposes. The dam, built in 1972, stands at a height of 19 feet and has a hydraulic height of 14 feet, with a storage capacity of 190 acre-feet.

Situated on Trout Creek, Fawn Lake covers a surface area of 19 acres and has a drainage area of 2.2 square miles. The dam has a controlled spillway and a maximum discharge capacity of 680 cubic feet per second. Despite being classified as having a high hazard potential, the dam's condition is assessed as satisfactory, with regular inspections carried out every two years to ensure its safety and functionality.

With its tranquil waters and scenic surroundings, Fawn Lake provides a recreational haven for water resource and climate enthusiasts in the region. Its importance as a local resource is underscored by state regulation, permitting, and enforcement to ensure the safety and sustainability of this cherished recreational area.