Ryan Brothers Lake, also known as North Twin Lake, is a private reservoir located in Carbon County, Wyoming. Constructed in 1924 for irrigation purposes, this Earth dam stands at a height of 11 feet and has a structural height of 12 feet. It has a storage capacity of 284 acre-feet, with a normal storage level of 215 acre-feet and a surface area of 27 acres.

Managed by the SEO agency, Ryan Brothers Lake is regulated and inspected by the state to ensure its structural integrity and operational efficiency. With a low hazard potential and fair condition assessment, the dam poses moderate risks that are actively monitored. The spillway type is uncontrolled, with a width of 20 feet, and it is equipped with a slide (sluice gate) outlet structure.

Situated along the North Twin Lake Creek, this reservoir offers a glimpse into the historical irrigation practices in the region and serves as a vital water resource for the surrounding area. Water resource and climate enthusiasts will appreciate the engineering behind this dam and the efforts in place to ensure its safety and functionality for the community.