Mirror Lake, also known as Sherburne Corp. Site No. 2, is a privately owned water resource located in Killington, Vermont. Constructed in 1973 by Wright Engineering, this Earth dam stands at a height of 21 feet and has a storage capacity of 64 acre-feet. The dam spans 420 feet in length and serves a primary purpose beyond flood control or water supply.

Managed by the Vermont Department of Environmental Conservation (DEC), Mirror Lake is regulated and inspected by state authorities to ensure its structural integrity and safety. With a low hazard potential and satisfactory condition assessment, the dam is considered to be in good standing as of its last inspection in 2015. While the lake's normal storage capacity is reported as zero, its surface area covers 5 acres within the Roaring Brook watershed.

Despite its relatively small size, Mirror Lake plays a crucial role in water resource management and climate resilience efforts in the region. Enthusiasts of water resources and climate change will find this privately owned dam a fascinating example of sustainable infrastructure design and management practices within the beautiful landscape of Rutland County, Vermont.