Rocky Mountain Network

Overview

Rocky Mountain Network (ROMN) includes six national park units in Colorado and Montana: Florissant Fossil Beds National Monument (NM), Glacier National Park (NP), Great Sand Dunes NP, Grant-Kohrs Ranch National Historic Site (NHS), Little Bighorn NM, and Rocky Mountain NP. Glacier NP, Great Sand Dunes NP, and Rocky Mountain NP are Class I air quality areas, receiving the highest protection under the Clean Air Act. The other park units are Class II air quality areas and also receive protection under the Act.