Stop by the unique Assay Office Museum on this open house day. Learn about assaying, hard rock mining, and the families in the area long ago. Registration not required.
Stop by the unique Assay Office Museum on this open house day. Learn about assaying, hard rock mining, and the families in the area long ago. Registration not required.
Drop by anytime during the open house to go inside the historic schoolhouse where students studied and played from 1880 to the World War II era. Volunteers will be on... read more →
Drop by anytime during the open house to go inside the historic schoolhouse where students studied and played from 1880 to the World War II era. Volunteers will be on... read more →
Drop by anytime during the open house to go inside the historic Altona Schoolhouse where students studied and played from 1880 to the World War II era. Volunteers will be... read more →
Drop by anytime from 10 a.m. to noon to watch the blacksmith work his craft. Listen to the clang-clang-clang of the hammer and the hum of the coal forge blower.... read more →
Drop by anytime from 10 a.m. to noon to watch the blacksmith work his craft. Listen to the clang-clang-clang of the hammer and the hum of the coal forge blower.... read more →
Join us for an easy 3-mile walk around Stearns Lake. Immerse yourself in the vibrant blooms and buzzing life of a native prairie on this gentle summer stroll. A few... read more →
Join volunteer naturalists and astronomers from the Longmont Astronomical Society for a series of summer night astronomy programs. Together we'll learn about the night skies and view the celestial bodies... read more →
The geologic history of Boulder County’s remarkable landscape goes back nearly two billion years! Rocks contain a record of the earth’s history that can be read like the pages in... read more →