Biohazard Cleanup Near Lyons Historic District Lyons, CO

Lyons is a statutory town in Boulder County, Colorado, sometimes referred to as "The Double Gateway to the Rockies."

Lyons is located at the confluence of North St. Vrain Creek and South St. Vrain Creek, at the intersection of State Highway 7 and U.S. Highway 36, both of which lead to Rocky Mountain National Park about 20 miles away.

The town was founded in 1880 by Edward S. Lyon, who purchased 160 acres after noticing the potential to quarry the red sandstone outcroppings in the region; the town was platted in 1881 and incorporated on April 10, 1891.

The red sandstone quarried around Lyons, formed in the Permian period about 260 million years ago, is considered the hardest sandstone in the world, and Lyons sandstone is now shipped worldwide.

The town's first major building, a red sandstone schoolhouse built in 1881, was saved from demolition and converted into the Lyons Redstone Museum by the Lyons Historical Society.

Lyons has a designated historic district with fifteen sandstone structures listed in the National Register of Historic Places, all built of native stone between the early 1870s and 1917.

On September 12, 2013, Lyons was severely affected by flooding that blocked all access routes to the town, and the National Guard evacuated the entire town.

The town population was 2,209 at the 2020 United States census, up from 2,033 at the 2010 census.

There were 874 households and 909 housing units in the town at the 2020 census.

Lyons covers about 1.36 square miles and sits at an elevation of 5,341 feet.