A. M. Puett, also known as Little Summit, is a privately owned dam in Montezuma County, Colorado, designed by the USDA NRCS. Completed in 1960, this earth dam primarily serves irrigation purposes, with additional functions for fish and wildlife ponds and recreation. The dam stands at a height of 43 feet, with a hydraulic height of 44 feet and a structural height of 52 feet, encompassing a length of 1895 feet and a surface area of 163 acres.

Located in the Cash Canyon watershed, A. M. Puett has a significant hazard potential and a satisfactory condition assessment as of the last inspection in October 2019. The dam has a normal storage capacity of 2394 acre-feet and a maximum discharge of 1950 cubic feet per second. Despite being privately owned, the dam is regulated by the Colorado Department of Water Resources, with permitting, inspection, and enforcement mechanisms in place to ensure its safe operation.

As a crucial water resource infrastructure in the region, A. M. Puett plays a vital role in supporting agricultural irrigation and enhancing local ecosystems. With a moderate risk assessment rating and a spillway type of uncontrolled, the dam continues to be monitored and maintained to mitigate potential risks and protect downstream communities from flooding events. Its history, design, and operational significance make A. M. Puett a noteworthy structure for water resource and climate enthusiasts to study and appreciate.