Montgomery Lake Dam, located in Presidio, Texas, is a private Earth dam primarily used for irrigation purposes along TR-Crystal Creek. Standing at a height of 40 feet with a length of 200 feet, the dam has a storage capacity of 206 acre-feet and a maximum discharge of 0. Despite lacking a spillway, it is equipped with one outlet gate for water control. The dam's hazard potential is marked as "Not Available" with a risk assessment of "High (2)", suggesting potential safety concerns.

This dam is not under state jurisdiction or regulation, but it is subject to state permitting and inspection. While the original designer remains unknown, the structure's core type is listed as Buttress with an unspecified foundation type. With its location in a picturesque area and its vital role in providing irrigation water, Montgomery Lake Dam serves as a key component in the water resource management of the region. Enthusiasts of water resources and climate will find the unique characteristics and potential risks associated with this dam intriguing and worthy of further exploration and study.