What to expect at Fish Lake near Okanogan

Fish Lake sits in the Okanogan National Forest about 30 miles northwest of the town of Okanogan, at roughly 3,500 feet elevation. The lake holds cutthroat trout and brook trout, with cutthroat being the primary species. It is a small, shallow alpine lake — roughly 10 acres — that warms enough in summer to support decent fishing from late June through September, though water temperature and clarity vary year to year depending on snowmelt timing.

The lake draws a mix of day-trippers and backpackers. Access is a 3-mile hike from the trailhead, which keeps crowds moderate compared to lakes closer to Seattle. The setting is typical North Cascades: conifer forest, rocky shoreline in places, and a backdrop of higher peaks. Fishing pressure is light to moderate, and the fish are not large — most cutthroat run 8 to 12 inches — but they are willing and the lake is scenic enough to justify the walk even if the bite is slow.

Key Takeaways

  • Fish Lake holds cutthroat and brook trout; cutthroat are the main target and typically run 8 to 12 inches.
  • The lake is accessible only by a 3-mile hike from the trailhead near Conconully, adding a full day to any trip.
  • Best fishing runs from late June through September, with peak conditions usually in July and August after snowmelt clears.
  • Washington fishing regulations require a current license and adherence to species-specific catch limits; check the current pamphlet for cutthroat and brook trout rules.
  • The lake sits in the Okanogan National Forest, so camping is allowed at designated sites, but fires may be restricted during dry season.

How to reach Fish Lake and what the hike involves

The trailhead is located near Conconully, a small town about 20 miles west of Okanogan. From Okanogan, take Highway 20 west toward Concrete, then turn north on Conconully Road. Follow signs toward Conconully Lake and the Okanogan National Forest. The trailhead parking area is unsigned but sits near the end of the road in the forest; ask at the Conconully ranger station or the Okanogan-Wenatchee National Forest office in Okanogan if you are unsure of the exact location.

The 3-mile hike to Fish Lake gains roughly 1,000 feet and takes most people 90 minutes to two hours one way. The trail is well-maintained but steep in sections, especially in the final mile. Footing is rocky and can be muddy early in the season. Bring water, as the trail itself has no reliable sources. The hike is manageable for anyone with moderate fitness, but it is not a casual stroll — plan for a full day if you are fishing and returning the same day, or overnight if you want to fish multiple days.

Fishing seasons and water conditions

Fish Lake typically opens to fishing around late June, once snowmelt has receded enough for safe access. The lake can remain partially frozen into early June in heavy snow years. Peak fishing usually occurs in July and August, when water temperature stabilizes and insects are most active. By September, the lake is still fishable but water temperature begins to drop and fish become less aggressive.

Early-season fishing (late June through early July) can be hit-or-miss because snowmelt keeps water cold and often cloudy. Mid-summer (mid-July through August) is most reliable, with clearer water and more consistent hatches. Late-season fishing (September) can be good if the weather holds, but afternoon thunderstorms become more frequent and the hike out in fading light is less pleasant.

What tackle and techniques work best

Cutthroat trout at Fish Lake respond well to small spinners (size 0 to 1), small spoons, and fly fishing. Spinner colors that work include silver, gold, and copper; cast near the shoreline and around any submerged structure. If you fly fish, bring small dry flies (size 14 to 18) and nymphs in olive, tan, and black. Cutthroat will rise to dry flies on calm evenings, especially in July and August.

Brook trout are less common but will take the same offerings. The lake is shallow enough that you can wade much of the shoreline, which gives you access without needing a float tube or boat. Early morning and late afternoon are most productive. Midday fishing is slower, especially on bright days. If the lake is crowded (rare, but possible on summer weekends), move to the far end away from the main camping area.

Regulations, licenses, and catch limits

Washington requires a current fishing license for anyone 16 and older. You can purchase a one-day, three-day, or annual license online through the Washington Department of Fish and Wildlife (WDFW) website or at sporting goods retailers in Okanogan. The license is inexpensive and takes minutes to obtain.

Cutthroat trout and brook trout have separate catch limits that change periodically. As of recent years, cutthroat often have a limit of 5 per day, and brook trout may have a similar or different limit — check the current Washington Sport Fishing Pamphlet (available free from WDFW or online) before you fish. Regulations can vary by water body, so verify Fish Lake's specific rules. Cutthroat trout have a minimum size requirement in some areas; confirm this as well.

Camping and overnight logistics

Fish Lake has several small campsites near the shoreline, managed by the Okanogan National Forest. These are primitive — no water, no toilets, no developed facilities — but they are free and available on a first-come, first-served basis. Camping is allowed year-round in the forest, though winter access is difficult due to snow.

If you plan to overnight, bring a camp stove; fires may be prohibited during fire season (typically mid-July through September, depending on conditions). Pack out all trash and human waste. Water from the lake should be treated before drinking. The nearest developed campground with facilities is at Conconully Lake, about 3 miles from the trailhead by road, though it is not as close to Fish Lake itself.

When to avoid Fish Lake and what to do instead

Fish Lake is not a good choice before late June, when snow and high water make the hike difficult and the lake is too cold for consistent fishing. It is also not ideal during peak summer heat (late July through early August) if you dislike crowds, though crowds here are still light compared to western Washington lakes. Heavy rain can make the trail muddy and the hike unpleasant.

If Fish Lake is inaccessible or you want an alternative, Conconully Lake (the larger lake near the town) offers easier access and holds similar species, though it receives more fishing pressure. Spectacle Lake, also in the Okanogan National Forest, is another option with a shorter hike and good cutthroat fishing. Both are worth considering if the Fish Lake trail is closed or conditions are poor.

Frequently Asked Questions

Do I need a Washington fishing license to fish Fish Lake?

Yes. Anyone 16 or older must have a current Washington fishing license. You can buy a one-day license online or at a sporting goods store in Okanogan for a small fee. The license is quick to obtain and required by law.

Can I fish Fish Lake in winter?

Technically yes, but the hike is difficult or impossible depending on snow depth. The trail is not maintained in winter, and snowpack typically blocks access from November through May. Spring and fall are more practical if you want to avoid summer crowds.

Is the 3-mile hike difficult for someone out of shape?

It is steep and gains 1,000 feet, so it is more challenging than a flat walk. If you are not used to hiking, plan extra time and bring water and snacks. The trail is well-marked and safe, but the pace will be slower. Many people of varying fitness levels make it, but it is not a casual stroll.

What is the best time of year to fish Fish Lake?

July and August offer the most reliable fishing, with warmer water, clearer conditions, and more active insects. Late June can work but is less consistent. September is still good if weather permits, but afternoon storms become more common and daylight fades earlier.

Can I use a boat or float tube on Fish Lake?

The lake is small and shallow enough to wade most of the shoreline, so a boat or float tube is not necessary. Carrying one on a 3-mile hike would be impractical. Shore fishing and wading are the standard approach.