ATTENTION: Harriman State Park of Idaho is a waterfowl and wildlife refuge. Dogs must be on a leash at all times and are not permitted beyond the parking lots at the main trails. The Harriman Hounds Trail, going out into the National Forest and outside the Wildlife Refuge, is groomed during the winter and is the only trail available for dogs. Please clean up after your dogs and put pet refuse in available Dog Waste Station at the start/end of the trail system.
Winter 2022/2023:
There is a $7 Motor Vehicle Entrance Fee (MVEF) per vehicle to visit the Park and a $6 per day per person Winter Access Fee. You can purchase a 2022-2023 Winter Season Pass at the Visitor Center.
Conditions Report: 03/16/2023
Recent Snowfall (24 hour): 2″
Total Snowpack: 63″
Trail Conditions: Skate lanes were groomed on 3/15. John Muir, Hounds, and Thurman Loop trails were groomed on 3/14. There is 2″ of new snow on the trails. With the wind yesterday, the trails could have drifted snow. The trails around Silver Lake are not in good condition. Staff is still working to remove large drifts and tree wells. Do not fat bike on trails if you are leaving a rut deeper than 1″.
REMINDER: Dogs are only allowed on the Harriman Hounds Trail. The Harriman Hounds Trail begins behind the Visitor Center.
The Brimstone Connector Trail won’t be groomed for the rest of the 2022-2023 Winter Season due to nesting eagles.
Suggested Equipment: snowshoes, classic skis, skate skis, fat bikes with low psi
**Please remember to “Know Your Groom” and stay in your lane**
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REMINDER: Dogs are only allowed on the Harriman Hounds Trail. The Harriman Hounds Trail begins behind the Visitor Center.
The Brimstone Connector Trail won’t be groomed for the rest of the 2022-2023 Winter Season due to nesting eagles.
Suggested Equipment: Snowshoes, classic skis, fat bike, skate skis
**Please remember to “Know Your Groom” and stay in your lane**
Follow us on Facebook for current trail conditions, events, and link to local weather.
**Note: If you do not have a Facebook account, please use your phone or Google Chrome browser and scroll to the very bottom of this page. There you can see the latest Harriman State Park posts, including conditions updates.
Please note: Harriman State Park is a waterfowl and wildlife refuge, therefore dogs are not permitted beyond the parking lots at the main trails.
Mesa Falls Recreation Area is owned by the US Forest Service and co-managed by Harriman State Park.
Summer/Spring
Big Falls Inn, an interpretive building and store, is open from Memorial weekend to mid-September from 9:30 a.m. to 5:30 p.m.
Winter
In the winter, Scenic Byway 47 does not remain open to vehicles but is groomed for snowmobile traffic.The falls are only accessible by snowmobile or cross-country skies and visitors can park at Bear Gulch on Scenic Hwy 47 east of Ashton and ski or snowmobile the packed road 5 miles to Mesa Falls. Snowmobilers can also reach Mesa Falls from Hwy 20 via Scenic Byway 47, which is a 14-mile scenic ride. The Big Falls Inn is open on weekends from 10:00 a.m. to 3:00 p.m. from the first week in January to the second week in March and you can go in and warm up by the fire. The trail down to the falls is very snow packed and icy and visitors should use extreme caution if attempting this scenic view.
More Information
Current Conditions
Address: 3489 Green Canyon Rd
Island Park, ID 83429
Phone: (208) 558-7368
Hours of Operation: Day-use locations within state parks are open from 7 am to 10 pm, per Idaho state code 26.01.20 (5). Day-use hours may change based on park manager discretion.
