Canyon Ferry Lake

MONTANA


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Canyon Ferry Lake News

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November 2025 Water Resources Outlook

NWS Southeast River Forecast Center

Date: 11/20/2025

November 2025 review of Southeast Rivers for the past month and an outlook on factors that will impact future streamflows…

October 2025 Water Resources Outlook

NWS Southeast River Forecast Center

Date: 10/20/2025

The Southeast River Forecast Center October 2025 Water Resources Outlook. This outlook reviews recent influences on Southeast US streamflow's and provides an outlook of the coming months streamflow influences…

September 2025 Water Resources Outlook

NWS Southeast River Forecast Center

Date: 9/22/2025

The Southeast River Forecast Center September 2025 Water Resources Outlook. This outlook reviews recent influences on southeast US streamflow's and provides an outlook of the coming months streamflow influences…

What Will the Long July 4 Holiday Weekend Be Like on the Water for Boaters?

BoatUS News

Date: 6/30/2025

TowBoatUS predicts more than 2,500 requests for on-water assistance SPRINGFIELD, Va., June 30, 2025 – When NOAA, The Weather Channel and even the Farmer’s Almanac all agree this summer will be hotter than average, boaters know they will need to prepare for the heat. However, on America’s July 4…

Water Resources Outlook for September 2023

National Weather Service

Date: 9/21/2023

Southeast River Forecast Center Water Resources Outlook for September 2023 addressing flooding and drought issues across the southeast U.S…

11:55:54 PM

UPCOMING EVENTS

3/15/2026 - Daylight Saving Time Begins

11/1/2026 - Daylight Saving Time Ends

3/14/2027 - Daylight Saving Time Begins

11/7/2027 - Daylight Saving Time Ends

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• River: Missouri River
• Length: 76 Miles
• Surface Area: 35,181 Acres
• Volume: 2,050,900 Acre Feet
• Drainage Area: 15,860 Square Miles

Canyon Ferry Lake is a reservoir on the Missouri River near Helena, Montana and Townsend, Montana. It is Montana's third largest body of water, covering 35,181 acres and 76 miles of shore. It was formed by the building of Canyon Ferry Dam, which was completed in 1954 and has been used for electricity, irrigation, and flood controls since. The lake is a popular outdoor destination providing boating, fishing, wildlife habitat, and is nestled against the Big Belt Mountains of the Rocky Mountains. Canyon Ferry Lake has also become a leading ice boat venue for iceboat racing and iceboat world speed record attempts. The former town of Canton lies beneath the lake, having been submerged following construction of the dam.
Canyon Ferry Lake was formed when Canyon Ferry Dam was built, blocking the Missouri River. Canyon Ferry Lake is very popular and receives the most use of any lake in the state. This is due to both its size and location. The lake is quite large, even by Montana standards, measuring more than thirty-miles long and up to five miles wide. Since the lake lies just fifteen miles from Helena, the state capital, it receives heavy use during warm weather and on the weekends.

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