Station Name: Boiling River at Mammoth,YNP
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 5,686 feet

Nearest Address:
N Entrance Rd
Yellowstone National Park, WY 82190
Park County

GPS Coordinates: 44.9851333, -110.6893444

Nearby Water Temperatures

Air Quality Alert issued July 28 at 8:00AM MDT by NWS Great Falls MT

Effective: Tue July 28, 2026, 8:00 AM
Expires: Wed July 29, 2026, 9:00 AM

AQAMT The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Deer Lodge, Fergus, Granite, Jefferson, Judith Basin, Lake, Lewis and Clark, Liberty, Meagher, Mineral, Missoula, Petroleum, Pondera, Powell, Ravalli, Sanders, Silver Bow, Teton, Toole, Phillips, Hill counties in effect until 9AM on 07/29/2026 An Air Quality Alert means that particulates have been trending upwards and that an exceedance of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 6AM on 07/28/2026, particulate levels in Billings, Hamilton and Helena are Unhealthy for Sensitive Groups. As of 6AM on 07/28/2026, particulate levels in Butte, Columbia Falls, Cut Bank, Dillon, Frenchtown, Great Falls, Havre, Lewistown, Libby, Malta, Missoula, Sleeping Giant and Thompson Falls are Moderate. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us