Cortez Area 28 Tsf Dam, located in Lander, Nevada, is a privately owned earth dam primarily used for tailings storage. Constructed in 1997 by the designer AMEC, this dam stands at a height of 215 feet and has a hydraulic height of 212 feet. With a storage capacity of 31,229 acre-feet and a surface area of 205 acres, this dam plays a crucial role in managing water resources in the area.

Despite being classified as having a low hazard potential, the dam's condition assessment in 2019 was rated as fair. Regular inspections are conducted every five years to ensure its structural integrity and safety. The dam has undergone several modifications over the years to enhance its structural stability, including in 1998, 1999, 2000, 2004, 2008, 2011, and 2012.

Although the dam does not have a spillway, it is equipped with other controlled outlet gates to manage water flow. The risk assessment for Cortez Area 28 Tsf Dam indicates a high risk level (2), emphasizing the importance of continued monitoring and maintenance to mitigate potential hazards. With its critical role in water storage and management, this dam serves as a key infrastructure for both water resource and climate enthusiasts in the region.