What You'll Find at Ruedi Reservoir

Ruedi Reservoir is a 1,000-acre alpine lake in the Fryingpan River drainage near Basalt, Colorado, sitting at 7,760 feet elevation. The water holds kokanee salmon and lake trout as the primary species, with a smaller population of brown trout. The reservoir is known for consistent kokanee fishing in late summer and fall, when the fish move into shallower water and become more predictable. Lake trout fishing is year-round but peaks in spring and fall when water temperatures favor active feeding.

Access is straightforward: the reservoir lies about 40 miles east of Glenwood Springs via Colorado Highway 82 and Forest Service Road 105. A paved boat ramp and developed shoreline make it accessible to anglers of all skill levels. The setting is high-country forest with views of the Sawatch Range, and the water stays cold enough to support cold-water species even in midsummer.

Key Takeaways

  • Kokanee salmon peak in August through October when they school in deeper water and respond to small jigging presentations.
  • Lake trout are present year-round but fish best in spring (April–May) and fall (September–October) when water temperatures are coolest.
  • A Colorado fishing license is required; check current regulations for bag limits and size restrictions, which vary by species.
  • The boat ramp is open year-round, though winter access may be limited by snow on Forest Service Road 105.
  • Trolling and jigging are the most effective methods; shore fishing is possible but less productive than boat-based approaches.

Kokanee Salmon: Late-Summer Peak

Kokanee fishing at Ruedi is best from mid-August through October. The fish spawn in the Fryingpan River arm of the reservoir, and as water temperatures drop in late summer, they move into the main basin and become concentrated in predictable zones. Target depths of 30 to 50 feet in the central reservoir, particularly near the dam and along the deeper channels.

Small jigging spoons (1/4 to 1/2 ounce) in silver, chartreuse, or white work consistently. Drop them vertically over deep water and work them with a steady jigging motion. Trolling small spoons and spinners at depths of 25 to 40 feet also produces, especially early and late in the day. The bite is often aggressive in September and early October, then slows as spawning intensifies and fish move into tributaries.

Kokanee are a catch-and-release fishery at Ruedi under current Colorado Parks and Wildlife regulations, though this can change. Check the current fishing brochure for Ruedi Reservoir before you go, as regulations are updated annually.

Lake Trout Year-Round, Best in Spring and Fall

Lake trout (mackinaw) are the most abundant large fish in Ruedi and can be caught throughout the year. Spring (April through May) and fall (September through October) are the most productive periods, when cooler water temperatures push fish into shallower zones and increase their feeding activity. Winter fishing is possible but requires ice-fishing equipment and willingness to work in cold conditions.

Trolling is the primary method: use small spoons, tube jigs, or swimbaits in depths of 20 to 60 feet depending on the season. In spring, fish shallower structure and drop-offs as the lake turns over. In fall, fish deeper as water cools and fish move down. Jigging vertically over deep holes also works, especially in fall when fish concentrate before winter.

Lake trout have a 16-inch minimum size and a daily bag limit of 10 fish under current regulations. Verify the current brochure before fishing, as limits can change.

Seasons and Water Conditions

Ruedi Reservoir is ice-free from late May through November in most years, though early and late-season conditions can be unpredictable. The peak fishing season runs from June through October. Summer (July–August) can be slow for both species because warm surface water pushes fish deeper and reduces their activity. Water temperature is the key variable: kokanee and lake trout both prefer water below 65 degrees Fahrenheit.

Winter access depends on snow conditions on Forest Service Road 105. The road is not always plowed, so check with the Aspen-Sopris Ranger District before making the drive in December through March. Ice fishing is possible when the reservoir freezes, typically from December through February, but conditions vary year to year.

Spring runoff (May–June) can make the water turbid and fishing difficult. By mid-June, water clarity usually improves and fishing picks up. Fall is often the most reliable season: water is clear, temperatures are stable, and both kokanee and lake trout are actively feeding.

Access, Facilities, and Regulations

The Ruedi Reservoir boat ramp is located at the north end of the lake, accessible via Forest Service Road 105 from Colorado Highway 82. The ramp is paved and maintained year-round, though winter snow may limit access. There is a day-use parking area and a developed picnic area. No overnight camping is allowed at the reservoir itself, but dispersed camping is available on nearby National Forest land.

A Colorado Parks and Wildlife fishing license is required for anyone 16 and older. Licenses can be purchased online through the CPW website, at sporting goods stores, or at ranger district offices. Current regulations for Ruedi Reservoir are published in the annual Colorado Parks and Wildlife fishing brochure, available online and at access points. Regulations cover bag limits, size restrictions, and any special rules for specific species.

The reservoir is managed by the U.S. Forest Service as part of the White River National Forest. Motorized boats are allowed. Personal flotation devices are required by law for anyone in a boat.

Tackle and Techniques That Work

Jigging is the most effective method for both kokanee and lake trout at Ruedi. Use a medium-action rod with 6- to 8-pound monofilament or braided line. Small jigging spoons (1/4 to 1/2 ounce) in silver, chartreuse, or white are standard. Drop the spoon to the target depth and work it with a steady up-and-down motion, pausing occasionally to let it flutter on the drop.

Trolling works well for both species, especially in spring and fall. Use small spoons, tube jigs, or swimbaits in sizes 1 to 3 inches. Troll at 1 to 2 miles per hour in depths of 20 to 60 feet, depending on the season and water temperature. A depth finder is invaluable for locating structure and suspended fish.

Shore fishing is possible from the picnic area and around the dam, but it is less productive than boat-based fishing. If you fish from shore, use similar jigging spoons or small spinners cast into deeper water. Early morning and evening are the most productive times.

Getting There and Planning Your Trip

Ruedi Reservoir is 40 miles east of Glenwood Springs via Colorado Highway 82 and Forest Service Road 105. The drive takes about 1.5 hours from Glenwood Springs. The nearest town with services is Basalt, about 15 miles west. Aspen is 30 miles south and offers more extensive lodging and dining options.

Plan for a full day of fishing. The boat ramp opens at sunrise and closes at sunset. Bring sunscreen, a hat, and layers—weather at 7,760 feet can change quickly, and afternoon thunderstorms are common in summer. A depth finder and GPS are helpful for locating fish and navigating safely. If you plan to fish in fall or winter, check road conditions before you leave, as Forest Service Road 105 can be snow-packed or impassable.

The nearest ranger district office is the Aspen-Sopris Ranger District, located in Aspen. Staff there can provide current conditions, road status, and detailed fishing information.

Frequently Asked Questions

What is the best time to fish Ruedi Reservoir?

September and October are the most productive months. Kokanee are actively feeding as they prepare to spawn, lake trout are in shallower water as temperatures cool, and water clarity is excellent. Spring (April–May) is also good for lake trout, but kokanee fishing is slower.

Can I fish from shore at Ruedi?

Yes, shore fishing is allowed from the picnic area and around the dam, but it is less productive than boat fishing. Most anglers use boats to reach deeper water where fish concentrate. If you fish from shore, early morning and evening are your best times.

Do I need a boat to fish Ruedi Reservoir?

A boat is not required, but it is strongly recommended. Most productive fishing happens in water 30 to 60 feet deep, which is difficult to reach from shore. A small boat or kayak gives you access to the best fishing zones.

Is Ruedi Reservoir open in winter?

Yes, but access depends on snow conditions on Forest Service Road 105. The road is not always plowed. Ice fishing is possible when the reservoir freezes, typically December through February. Call the Aspen-Sopris Ranger District to check road status before making the drive.

What size fish can I expect to catch?

Lake trout typically range from 12 to 18 inches, with occasional fish exceeding 20 inches. Kokanee are smaller, usually 10 to 14 inches. Both species are strong fighters and provide good sport on light tackle.