Culver, also known as Blue Mountain Reservoir, is a privately owned irrigation dam located in Larimer County, Colorado. Built in 1881 by the USDA NRCS, this Earth-type dam stands at a height of 14 feet and has a maximum storage capacity of 370 acre-feet. The reservoir serves the primary purpose of irrigation for the surrounding area, drawing water from the Little Thompson River-TR.

With a moderate hazard potential and a satisfactory condition assessment as of the last inspection in 2012, Culver remains a crucial water resource in the region. The dam features an uncontrolled spillway with a width of 252 feet and a maximum discharge capacity of 4516 cubic feet per second. While the risk assessment is rated as moderate, the dam is deemed to meet safety guidelines and have adequate risk management measures in place.

Although Culver has not undergone recent modifications or emergency action plan updates, its low hazard potential and satisfactory condition provide assurance to water resource and climate enthusiasts in the area. With its historical significance dating back to the late 19th century, Culver continues to play a vital role in irrigation and water management within Larimer County, Colorado.