Highline, also known as Mesa Recovery Basin, is a local government-owned water supply structure located in El Paso County, Colorado. Completed in 1938, this earth dam stands at a height of 38 feet and has a storage capacity of 91 acre-feet, serving the primary purpose of water supply for the area. The dam, situated on Monument Creek-TR, has a spillway type of uncontrolled and an outlet gate valve for water release.

With a high hazard potential and a satisfactory condition assessment as of September 2020, Highline is regulated by the Colorado Department of Water Resources, with state permitting, inspection, and enforcement in place. The dam has a moderate risk assessment rating and is located in close proximity to Colorado Springs, providing essential water resources to the region. As a critical infrastructure for water management, Highline plays a crucial role in ensuring a reliable water supply for the community and mitigating the impacts of climate change on water resources in the area.