The Hahns Peak Schoolhouse, on Main St. of the unincorporated community of Hahns Peak Village, Colorado, is a one-room schoolhouse which was built in 1911. It was listed on the National Register of Historic Places in 1974. It has also been known as "the little green school house". A front vestibule was added some time after 1917. The village functioned as the county seat for northwestern Colorado from 1877 to 1912. The schoolhouse operated from 1912 to 1943.