Tanglwood Lake, located in Palmyra Township, Pike County, Pennsylvania, is a privately-owned reservoir primarily used for recreation purposes. Constructed in 1965, this earth dam stands at 18 feet high and spans 400 feet in length, with a storage capacity of 311 acre-feet. The lake covers a surface area of 33 acres and is fed by TR Kleinhans Creek, making it a vital water resource in the region.

Managed by the Pennsylvania Department of Environmental Protection, Tanglwood Lake is subject to state regulations, inspections, and enforcement to ensure its safety and functionality. Despite being classified as having a high hazard potential, the dam's condition is currently assessed as fair, with the last inspection conducted in September 2020. The dam has undergone modifications in 2006 to improve its hydraulic capabilities, demonstrating a commitment to maintaining its integrity and safety for the surrounding community.

For water resource and climate enthusiasts, Tanglwood Lake presents an interesting case study in private dam management and the intersection of recreation, water supply, and environmental protection. With its picturesque setting and strategic location in the Kleinhans Creek watershed, this reservoir serves as a valuable asset for the local community while also posing challenges in terms of risk management and regulatory compliance. As efforts continue to ensure the dam's safety and functionality, Tanglwood Lake remains a key focal point for those interested in sustainable water resource management and climate resilience initiatives.