Petry, also known as Lindsay Lake, is a private water resource located in Cowdrey, Colorado within the Big Grizzly-Tr river/stream system. This recreational dam, completed in 1964, stands at a height of 26 feet with a length of 463 feet, providing a storage capacity of 132 acre-feet. While primarily serving purposes such as flood risk reduction, irrigation, and recreation, Petry is regulated and inspected by the Colorado Division of Water Resources to ensure its safety and functionality.

Despite its low hazard potential, Petry poses a high risk due to lacking a condition assessment and updated emergency action plan. The dam's last inspection dates back to 1994, raising concerns about its current state and potential risks it may pose. With no inundation maps prepared and limited risk management measures in place, enthusiasts in water resource and climate fields may find Petry an intriguing case study for examining the importance of regular inspection and maintenance practices to prevent potential disasters and ensure the safety of surrounding communities.

As a privately owned structure with limited federal involvement, Petry's risk assessment of high magnitude underscores the significance of proactive risk management strategies and emergency preparedness measures. The dam's location in a remote area of Jackson County, Colorado, highlights the importance of continued monitoring and evaluation to mitigate any potential threats to the local ecosystem and downstream communities. For water resource and climate enthusiasts, Petry serves as a compelling example of the complexities involved in managing and maintaining aging infrastructure to safeguard water resources and surrounding environments.