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Arrowrock Reservoir

Magic Valley Region, Idaho

A 3,015-acre reservoir with fast-growing Kokanee and rainbow trout targeted by most anglers. Also offers smallmouth bass and yellow perch. Bull trout utilize the reservoir year-round - be sure to properly identify your catch. Reservoir levels fluctuate widely.

Quick Info

RegionMagic Valley
Water TypeReservoir
Skill Levelintermediate
Best Seasons
springsummerfall

Target Species

Kokanee Salmon
Yellow Perch
Mountain Whitefish
Smallmouth Bass
Rainbow Trout
Bull Trout

Highlights

Fast-growing Kokanee
30 minutes from Boise
Regular trophy trout stocking

Regulations

Southwest Region Bag Limits. Bull Trout catch-and-release. Kokanee limit 6.

Stocking Information

Last Stocked2025-09-18
Quantity9,000
Primary SpeciesRainbow Trout - Triploid

Getting There

Location Coordinates
43.5900°N, 115.9200°W
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Complete Guide to Fishing Arrowrock Reservoir

Arrowrock Reservoir stands as one of Magic Valley Idaho's premier fishing destinations, offering anglers a unique combination of Kokanee Salmon, Yellow Perch, Mountain Whitefish fishing opportunities in a stunning natural setting. Located in the heart of Idaho's Magic Valley region, this reservoir has earned its reputation among both local anglers and visiting fishermen who make the journey to experience what many consider some of the finest waters in the American West.

Understanding the Fishery

The Arrowrock Reservoir fishery is characterized by its intermediate difficulty level, making it suitable for anglers with some experience who are looking to challenge themselves while still enjoying consistent action. The primary species available include Kokanee Salmon, Yellow Perch, Mountain Whitefish, Smallmouth Bass, Rainbow Trout, Bull Trout, each presenting its own unique challenges and rewards throughout the fishing season.

Water conditions in this reservoir vary seasonally, with Spring and Summer and Fall typically offering the most productive fishing opportunities. During these peak periods, anglers can expect favorable conditions that support active feeding behavior and increased catch rates. Local guides often recommend planning trips during these windows for the best chance at a memorable fishing experience.

Planning Your Fishing Trip

Before heading to Arrowrock Reservoir, anglers should familiarize themselves with current Idaho Department of Fish and Game regulations. Southwest Region Bag Limits. Bull Trout catch-and-release. Kokanee limit 6. These regulations are designed to maintain the health and sustainability of the fishery, ensuring quality fishing for generations to come. Always carry a valid Idaho fishing license and any required endorsements, and check for any special restrictions or closures that may be in effect.

While Arrowrock Reservoir offers exceptional fishing, anglers should be prepared for varied conditions that test a range of angling skills. Proper preparation and realistic expectations will contribute to a successful outing.

The Magic Valley region of Idaho provides numerous lodging, dining, and supply options within reasonable driving distance. Many anglers choose to extend their trips, combining fishing at Arrowrock Reservoir with exploration of nearby waters and outdoor attractions. The area's natural beauty and abundant wildlife make every trip to this region a memorable outdoor experience.

Seasonal Patterns and Best Practices

Understanding seasonal patterns is crucial for success at Arrowrock Reservoir. Spring brings active feeding as water temperatures rise and aquatic insects become more active. This period often produces some of the year's most consistent action, with fish aggressively pursuing available food sources. Summer fishing can be excellent, particularly during early morning and late evening hours when temperatures are most comfortable for both anglers and fish. Midday fishing during summer months may require adjustments in tactics and location. Fall represents a prime fishing window as fish feed heavily in preparation for winter. This season often produces larger specimens as fish bulk up before the colder months arrive.

Conservation and Stewardship

Idaho's fisheries depend on responsible anglers who practice good stewardship. When fishing Arrowrock Reservoir, consider practicing catch-and-release for larger specimens to maintain the quality of the fishery. Handle fish with wet hands, minimize air exposure, and use barbless hooks when possible to reduce injury and improve survival rates for released fish.

The Magic Valley region's waters face ongoing challenges from habitat degradation, climate change, and fishing pressure. By following regulations, respecting the environment, and supporting conservation efforts, anglers can help ensure that Arrowrock Reservoir continues to provide world-class fishing opportunities for decades to come.

Local Resources and Support

The Idaho Department of Fish and Game maintains detailed information about Arrowrock Reservoir and other waters in the region. Their online resources include stocking reports, regulation updates, and fishing forecasts that can help anglers plan successful trips. Local fly shops, outfitters, and guide services offer valuable expertise and can provide current conditions, effective patterns, and access information specific to Arrowrock Reservoir.

Whether you're a first-time visitor or a returning angler, Arrowrock Reservoir offers fishing experiences that range from solitary pursuit of trophy specimens to the simple pleasure of connecting with Idaho's wild waters. The combination of fast-growing kokanee and 30 minutes from boise makes this destination worthy of a place on any Idaho angler's list of must-visit waters.