Colorado Colony Ditch Co. No. 2, also known as Granger, is a private water resource infrastructure located in Big Horn, Wyoming. This irrigation system was designed by SCS and completed in 1957, serving the primary purpose of irrigation along the Peralto Ditch. The dam type is earth with stone core and soil foundations, standing at a height of 16 feet and a length of 165 feet, with a storage capacity of 254 acre-feet.

With low hazard potential and fair condition assessment, Colorado Colony Ditch Co. No. 2 is regulated by the State of Wyoming, with inspection, permitting, and enforcement processes in place by the State Engineer's Office. The dam has a spillway width of 25 feet and is equipped with a slide (sluice gate) outlet gate. While the risk assessment categorizes the structure as moderate, it continues to provide essential water resources for agricultural use in the region.

Despite being a privately owned water infrastructure, Colorado Colony Ditch Co. No. 2 plays a crucial role in sustaining the local economy and ecosystem by facilitating irrigation along the Peralto Ditch. With its strategic location in Sheridan County, Wyoming, this system reflects the importance of efficient water management and the need for ongoing maintenance and monitoring to ensure its continued functionality and safety for all stakeholders involved.