Coon Creek #1, also known as Griffith Lake, is a private irrigation and recreational dam located in Mesa, Colorado. Built in 1900, this Earth-type dam stands at 19 feet tall and spans a length of 690 feet, with a storage capacity of 557 acre-feet. The dam serves the primary purpose of irrigation, supporting a drainage area associated with Coon Creek.

Despite its age, Coon Creek #1 is regularly inspected and maintained, with the last assessment in July 2020 rating its condition as fair. With a high hazard potential and moderate risk assessment, the dam remains a critical structure for water resource management in the area. Equipped with an uncontrolled spillway and slide gates for outlet control, Coon Creek #1 ensures the safety and stability of its surrounding ecosystem while providing essential water resources for agricultural and recreational purposes.

Enthusiasts of water resources and climate will find Coon Creek #1 to be an intriguing example of early 20th-century dam engineering, blending practical irrigation functionality with recreational opportunities. Its location in the picturesque setting of Mesa, Colorado, makes it a unique landmark in the region, showcasing the importance of sustainable water management practices in the face of changing climate conditions.