Gregor, also known as Gilley Lake, is a privately owned water resource located in Rio Blanco, Colorado. This dam, completed in 1911 for irrigation purposes, stands at a height of 11 feet and has a length of 234 feet. With a storage capacity of 62 acre-feet, Gregor serves as a vital resource for water management in the area, supporting both irrigation and recreational activities.

Despite being classified as having a low hazard potential, Gregor is considered to have a high risk level due to its age and lack of recent assessments. The last inspection of this earth dam was conducted in May 1992, indicating a need for updated safety measures to mitigate any potential risks. While the dam's condition is currently not rated, its risk assessment suggests a need for proactive risk management strategies to ensure the safety and sustainability of the structure.

With its location in the beautiful city of Meeker and its role in water management for the Vaughn Creek-Traprock River system, Gregor stands as a significant landmark in Colorado's water resource infrastructure. As climate change continues to impact water availability and quality, it is crucial to monitor and maintain structures like Gregor to ensure the resilience and sustainability of our water resources for future generations.