North Windmill, located in Campbell County, Wyoming, is a private earth dam completed in 2006 for irrigation purposes along the Mill Draw river. The dam stands at a height of 47 feet with a hydraulic height of 39 feet, providing a storage capacity of 35 acre-feet. With a spillway width of 15 feet and a maximum discharge of 753 cubic feet per second, the dam serves multiple purposes including fire protection, stock watering, and small fish pond maintenance, making it a crucial resource for the local community.

Despite its low hazard potential and fair condition assessment, North Windmill is regulated and inspected by the state agencies SEO and DEQ, ensuring its safety and compliance with regulatory standards. The dam's emergency action plan status and risk assessment are moderate, with a risk rating of 3. With a valve outlet gate and a drainage area of 0.11 square miles, the dam covers a surface area of 2.96 acres and plays a vital role in water management and conservation in the region.

Managed by private owners, North Windmill stands as a testament to sustainable water resource development and climate resilience in Wyoming. Its design by O & G Environmental and T. Jaap showcases the importance of proper infrastructure for irrigation and environmental protection. As a key component of the local water infrastructure, North Windmill contributes to the overall water security and agricultural sustainability in the area, highlighting the critical role of dams in mitigating the impacts of climate change on water resources.