Prince No.1 is a private Earth dam located in Park, Wyoming, with a primary purpose of serving as a Fish and Wildlife Pond. Built in 1993 by designer Roy R. Holm, this structure stands at a height of 19 feet and a length of 600 feet, with a storage capacity of 56 acre-feet. The dam, situated on the Prince Draw Tributary of the NF Shoshone River, plays a key role in fire protection and supporting local wildlife.

Despite being classified as having a low hazard potential, Prince No.1 is regularly inspected and maintained to ensure its structural integrity. The dam's condition was assessed as fair during its last inspection in May 2018, and it is equipped with a valve outlet gate and an uncontrolled spillway. The risk assessment for this dam is moderate, highlighting the importance of ongoing risk management measures to safeguard the surrounding area from potential flooding events.

With its vital role in providing water resources for fish and wildlife, Prince No.1 stands as a testament to the importance of sustainable water management practices. Climate and water resource enthusiasts can appreciate the careful design and maintenance of this structure, which not only serves practical purposes but also contributes to the ecological balance of the region. As a privately owned dam in a state regulated jurisdiction, Prince No.1 exemplifies the intersection of human infrastructure and environmental conservation in the management of water resources.