Species Listed for This Water
A species listing does not establish an open season or permission to keep a fish. Check the water-specific rules below before choosing a target species.
Highlights
Regulations
- From above the East Main Street bridge in Lava Hot Springs upstream to Chesterfield Reservoir: December 1 through Friday before Memorial Day weekend – trout – catch-and-release, no bait, barbless hooks required
- From above the East Main Street bridge in Lava Hot Springs upstream to Chesterfield Reservoir: Saturday of Memorial Day weekend through November 30 – trout limit is 6, no harvest of Cutthroat Trout
- From the Fort Hall Indian Reservation boundary upstream to the East Main Street bridge in Lava Hot Springs: Southeast Region general rules apply
- All sections within the Fort Hall Indian Reservation: Contact Shoshone-Bannock Tribal Office
Getting There
This pin identifies the water, not a verified parking area, boat launch, or legal entry point. Choose an established access site and check road conditions, fees, and land ownership before following directions.
Plan a trip to Portneuf River
Pick the exact river or creek section before checking regulations. Rules can change at a bridge, dam, confluence, or regional boundary. Check flow conditions and a safe exit before considering a wade or float.
The planning seasons shown above describe when to consider a trip. They are not an opening calendar. Read the rules for Portneuf River, including section-specific restrictions, and check for current IDFG changes before fishing.
- Review Idaho fishing license and permit requirements for everyone in your group.
- Find an established fishing or boating access site with IDFG. A map pin does not grant access across private land.
- Compare other fishing waters in the Southeast Region for an alternative if your intended site is closed or unsuitable.
Historical records in this guide may not include the latest stocking. Open the source for current records and schedules.
Recent stocking history (594 events)
- 2025-10-06Rainbow Trout - Triploid · 1,265
- 2025-09-03Rainbow Trout - Triploid · 1,900
- 2025-08-01Rainbow Trout - Triploid · 1,252
- 2025-07-22Rainbow Trout - Triploid · 1,265
- 2025-07-01Rainbow Trout - Triploid · 1,927
- 2025-06-11Rainbow Trout - Triploid · 1,588
- 2025-05-29Rainbow Trout - Triploid · 500
- 2025-05-05Rainbow Trout - Triploid · 336
More in Southeast
Plan Your Trip
Review water details, access points, and live gauge conditions where a reporting station is available.
Explore Fishing HQ