Irene, also known as Irene Stock Reservoir, is a private water structure located in Carbon County, Wyoming. Built in 1966 by designer Noah E Wolford, this earth dam has a height of 25 feet and serves multiple purposes including fire protection, stock watering, and small fish pond maintenance. Situated along the South Fork First Sand Creek, Irene has a storage capacity of 25 acre-feet and covers a surface area of 3 acres.

With a low hazard potential and fair condition assessment as of the last inspection in 2017, Irene is regulated and inspected by the Wyoming State Engineer's Office. The dam features an uncontrolled spillway and one outlet gate, with a maximum discharge capacity of 1259 cubic feet per second. Despite its moderate risk assessment rating, Irene has not undergone any significant modifications in recent years and continues to serve its intended purposes effectively.

Owned privately, Irene plays a crucial role in water resource management in the area, providing essential services for fire protection and livestock watering. Its location in Alcova, Wyoming, amidst picturesque surroundings, underscores the importance of sustainable water infrastructure for both environmental conservation and community well-being.