Sand Mesa No. 2 is a Federal-owned Earth dam located in Fremont County, Wyoming, specifically in the city of Boysen. Completed in 1977, this dam serves as a Fish and Wildlife Pond along the Sand Mesa Drain Trail, with a storage capacity of 796 acre-feet and a normal storage level of 268 acre-feet. The dam stands at a height of 11 feet, with a structural height of 11 feet and a hydraulic height of 9 feet, spanning a length of 2400 feet and covering a surface area of 88 acres.

Managed by the Bureau of Reclamation, Sand Mesa No. 2 is regulated and inspected by the same agency, ensuring its safe operation and compliance with state jurisdiction and permitting requirements. Despite being classified as having a low hazard potential, the dam is equipped with an uncontrolled spillway and one other controlled outlet gate. With a moderate risk assessment rating, the dam is currently assessed as being in a condition where information on its state is not available, highlighting the importance of ongoing monitoring and maintenance to mitigate potential risks and ensure the safety of the surrounding area.

Water resource and climate enthusiasts will appreciate the significance of Sand Mesa No. 2 in providing vital habitat for fish and wildlife in the region, while also recognizing the importance of proper dam management and maintenance to safeguard against potential hazards. The dam's location in a picturesque setting along the Sand Mesa Drain Trail adds to its value as both a functional infrastructure for water management and a harmonious element within the natural landscape. As a part of the broader water resource infrastructure in Wyoming, Sand Mesa No. 2 showcases the intersection of human engineering and environmental stewardship in ensuring a sustainable balance for both aquatic ecosystems and local communities.