Betty, located in Hulett, Wyoming, is a privately owned Earth dam completed in 1957 for fire protection, stock, or small fish pond purposes. The dam stands at a height of 31 feet with a hydraulic height of 26 feet and a length of 528 feet, creating a reservoir with a normal storage capacity of 93 acre-feet. Situated on Johnson Creek, Betty has a low hazard potential and is classified as being in fair condition as of the last inspection in May 2021.

Despite its modest size, Betty plays a crucial role in the local water resource management system, providing essential services for fire protection and livestock watering. With its uncontrolled spillway and moderate risk assessment, the dam serves as a valuable asset for the community while also presenting manageable challenges for regulatory agencies like the Wyoming State Engineer's Office. Water resource and climate enthusiasts can appreciate Betty's contribution to the regional ecosystem and the careful balance between human needs and environmental stewardship that it represents.