Wayfarers Park - Flathead Lake

Bigfork, Montana

Adopt-A-Beach Partner: THE FLATHEAD LAKERS (www.flatheadlakers.org)

Thanks to the Flathead Lakers for adopting Wayfarers State Park for the summer of 2019. The Lakers have been protecting the clean waters of Flathead Lake since 1958. Please support them by considering a donation or annual membership.

Our water quality monitoring for 2019 will begin on June 26th. Stay tuned for updates on the recreational water quality and current water temperature for this beach soon.

Thanks to Alpine Design, Glenn Malloy of UBS, the Great Polson Community Foundation, and the Confederated Salish & Kootenai Tribes for their continued support.

Flathead Lake in northwest Montana is the largest natural freshwater lake west of the Mississippi; slightly larger than Lake Tahoe at 27.3 mi. long, 15.5 mi. wide, and max depth of 370.7 ft.

Lots of parking available with 30 campsites (6 are tent only sites). The beach is sandy and wooded providing lots of shade in the hot summer sun. No concessions available so bring your own food and drink. Other facilities include a large pavilion with 5 picnic tables and 8 power outlets, indoor bathroom with flush toilets and 1 pit-toilet by the boat launch, 18 picnic tables, 3 trash cans with aluminum recycling, and coin showers.

As one of the cleanest in the world, Flathead Lake is perfect for OPEN WATER SWIMMING! No sharks, no jellyfish, and no lane lanes...just clear, clean, and crisp water!

Unless you like your water COLD, the effective swimming season is June through September. Average water temps in June are in the 60s, 70s in July and August, and then back down again in September.

Summer air temperatures average in the mid-70s to mid-80s.

Swim Guide shares the best information we have at the moment you ask for it. Always obey signs at the beach or advisories from official government agencies. Stay alert and check for other swimming hazards such as dangerous currents and tides. Please report your pollution concerns so Affiliates can help keep other beach-goers safe.

Beach conditions change constantly, and it is never wise to swim in open water up to 48-hours after a heavy rain. Please use caution!

WATER QUALITY
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on August 31st, 2018. Flathead Lake Open Water Swimmers updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   
MONITORING FREQUENCY

Wayfarers Park - Flathead Lake is sampled weekly from January 1st to September 1st

SOURCE INFORMATION

Flathead Lake in northwest Montana is the largest natural freshwater lake west of the Mississippi; slightly larger than Lake Tahoe at 27.3 mi. long, 15.5 mi. wide, and max depth of 370.7 ft.. As one of the cleanest in the world, Flathead Lake is perfect for OPEN WATER SWIMMING! No sharks, no jellyfish, and no lane lanes, just clear, clean, and crisp water!

Water at Flathead Lake's bathing beaches is monitored for recreational water quality during effective swimming season: July 1st through September 1st.

In 2017 FLOW Swimmers (Flathead Lake Open Water Swimmers) launched a sampling program of three local beaches. In 2018, the program has grown to 10 beaches around the lake. Samples areprocessed by Flathead Lake Biological Research Station. The water at the bathing beaches will be tested for E.coli

Monitoring Status
Montana follows federal guidelines for the monitoring of its recreational waters.
The guidelines for freshwater levels of E. coli are a geometric mean of 100 cfu per 100 mL and an STV of 320 cfu per 100 mL, measured using EPA Method 1603, or any other equivalent method that measures culturable E. coli.

E. coli
A beach is marked Green when two consecutive single sample results are under a geometric mean of 100 cfu per 100 mL and an STV of 320 cfu per 100 mL

A beach is marked Red when two consecutive single sample results are equal to or above a geometric mean of 100 cfu per 100 mL or aSTV of 320 cfu per 100 mL

A beach is marked Grey if there is no current results or no available information.

WATER QUALITY GRAPH

Wayfarers Park - Flathead Lake

Bigfork, Montana

WATER QUALITY
  • Passed water quality tests 60-95% of the time
  • Historical Status
  • This status is based on the latest sample, taken on August 31st, 2018. Flathead Lake Open Water Swimmers updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at
For water quality icon legend, click:   

Adopt-A-Beach Partner: THE FLATHEAD LAKERS (www.flatheadlakers.org)

Thanks to the Flathead Lakers for adopting Wayfarers State Park for the summer of 2019. The Lakers have been protecting the clean waters of Flathead Lake since 1958. Please support them by considering a donation or annual membership.

Our water quality monitoring for 2019 will begin on June 26th. Stay tuned for updates on the recreational water quality and current water temperature for this beach soon.

Thanks to Alpine Design, Glenn Malloy of UBS, the Great Polson Community Foundation, and the Confederated Salish & Kootenai Tribes for their continued support.

Flathead Lake in northwest Montana is the largest natural freshwater lake west of the Mississippi; slightly larger than Lake Tahoe at 27.3 mi. long, 15.5 mi. wide, and max depth of 370.7 ft.

Lots of parking available with 30 campsites (6 are tent only sites). The beach is sandy and wooded providing lots of shade in the hot summer sun. No concessions available so bring your own food and drink. Other facilities include a large pavilion with 5 picnic tables and 8 power outlets, indoor bathroom with flush toilets and 1 pit-toilet by the boat launch, 18 picnic tables, 3 trash cans with aluminum recycling, and coin showers.

As one of the cleanest in the world, Flathead Lake is perfect for OPEN WATER SWIMMING! No sharks, no jellyfish, and no lane lanes...just clear, clean, and crisp water!

Unless you like your water COLD, the effective swimming season is June through September. Average water temps in June are in the 60s, 70s in July and August, and then back down again in September.

Summer air temperatures average in the mid-70s to mid-80s.

Swim Guide shares the best information we have at the moment you ask for it. Always obey signs at the beach or advisories from official government agencies. Stay alert and check for other swimming hazards such as dangerous currents and tides. Please report your pollution concerns so Affiliates can help keep other beach-goers safe.

Beach conditions change constantly, and it is never wise to swim in open water up to 48-hours after a heavy rain. Please use caution!

MONITORING FREQUENCY

Wayfarers Park - Flathead Lake is sampled weekly from January 1st to September 1st

SOURCE INFORMATION

Flathead Lake in northwest Montana is the largest natural freshwater lake west of the Mississippi; slightly larger than Lake Tahoe at 27.3 mi. long, 15.5 mi. wide, and max depth of 370.7 ft.. As one of the cleanest in the world, Flathead Lake is perfect for OPEN WATER SWIMMING! No sharks, no jellyfish, and no lane lanes, just clear, clean, and crisp water!

Water at Flathead Lake's bathing beaches is monitored for recreational water quality during effective swimming season: July 1st through September 1st.

In 2017 FLOW Swimmers (Flathead Lake Open Water Swimmers) launched a sampling program of three local beaches. In 2018, the program has grown to 10 beaches around the lake. Samples areprocessed by Flathead Lake Biological Research Station. The water at the bathing beaches will be tested for E.coli

Monitoring Status
Montana follows federal guidelines for the monitoring of its recreational waters.
The guidelines for freshwater levels of E. coli are a geometric mean of 100 cfu per 100 mL and an STV of 320 cfu per 100 mL, measured using EPA Method 1603, or any other equivalent method that measures culturable E. coli.

E. coli
A beach is marked Green when two consecutive single sample results are under a geometric mean of 100 cfu per 100 mL and an STV of 320 cfu per 100 mL

A beach is marked Red when two consecutive single sample results are equal to or above a geometric mean of 100 cfu per 100 mL or aSTV of 320 cfu per 100 mL

A beach is marked Grey if there is no current results or no available information.

WATER QUALITY GRAPH



Swim Guide
is supported by
* The RBC Foundation

Swim Guide shares the best information we have at the moment you ask for it. Always obey signs at the beach or advisories from official government agencies. Stay alert and check for other swimming hazards such as dangerous currents and tides. Please report your pollution concerns so Affiliates can help keep other beach-goers safe.

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