Located in La Plata County, Colorado, the Pine River Watershed P. R. 2, also known as the Bert Stone Dam, is a privately owned structure designed by the USDA NRCS. Completed in 1968, this earth dam stands at a height of 50 feet and serves the primary purpose of flood risk reduction along the Spring Creek-TR river or stream. With a maximum storage capacity of 252 acre-feet and a normal storage of 192 acre-feet, the dam covers a surface area of 12 acres and has a drainage area of 1 square mile.

Despite its low hazard potential and satisfactory condition assessment as of September 2016, the Pine River Watershed P. R. 2 poses a high risk, rated at level 2. With a structural height of 60 feet and a hydraulic height of 46 feet, the dam has a maximum discharge capacity of 600 cubic feet per second. While it lacks a spillway, the dam features a spillway width of 20 feet, ensuring effective flood control measures. Regular inspections are conducted every three years to ensure the dam's integrity and safety for nearby communities in Blanco, NM.