What You'll Find at Silver Lake

Silver Lake sits in the North Cascades near Concrete, Washington, about 90 minutes northeast of Seattle. It's a glacial-fed alpine lake at roughly 3,000 feet elevation, roughly 1,000 acres in size, and known for kokanee salmon and cutthroat trout. The water is cold and clear year-round, which keeps the fish active but also means you need to match the season and time of day to catch them consistently.

The lake draws anglers who want mountain scenery without a backcountry hike. A paved road reaches the main access point, and there's a developed campground with boat launch. That accessibility makes it popular in summer, especially on weekends. The tradeoff is that the fish can be selective during peak hours, so early morning and late evening produce better results than midday.

Key Takeaways

  • Silver Lake holds kokanee and cutthroat trout year-round, with kokanee most active June through September and cutthroat responding better in spring and fall.
  • The main access is via Forest Road 1049 off Highway 20 near Concrete; a paved boat launch and campground are available at the south end.
  • You need a Washington fishing license and must follow state regulations, including a two-fish daily limit on kokanee and catch-and-release rules for cutthroat in certain seasons.
  • Trolling small spinners and spoons works for kokanee; fly fishing and small lures work for cutthroat, especially near inlet streams and drop-offs.
  • The lake is accessible year-round, but snow can close Forest Road 1049 from December through March in heavy years.

How to Reach Silver Lake

From Concrete, take Highway 20 east for about 10 miles. Turn north onto Forest Road 1049 (also signed as the Sauk River Road). Follow it for roughly 8 miles until you reach the Silver Lake Campground and boat launch at the south end of the lake. The road is paved and well-maintained in summer and fall, but winter snow can close it for extended periods.

There is no town at the lake itself. Concrete, 10 miles south, has gas, groceries, and a few restaurants. Marblemount, another 10 miles south, offers similar services. If you're coming from Seattle, allow two hours of driving time. The nearest larger town with more lodging options is Sedro-Woolley, about 20 miles south.

Parking at the boat launch is free. The campground has 30 sites, most with no hookups; sites are first-come, first-served and cost roughly $20 per night. Reservations are not taken. In July and August, arrive early on weekends to secure a spot.

Kokanee: The Main Summer Target

Kokanee salmon dominate Silver Lake from June through September. These are landlocked sockeye — small (usually 10 to 14 inches), fast, and willing to strike. They school in the deeper water during the day, typically 40 to 80 feet down, and move shallower at dawn and dusk. The best bite is usually the first two hours after sunrise and the last hour before sunset.

Trolling is the most effective method. Use small spinners (size 1 or 2) or spoons (half-ounce to three-quarter-ounce) in silver or chartreuse. Troll slowly — 1 to 2 miles per hour — along the drop-offs on the east and west sides of the lake. The north end, where inlet streams enter, also holds fish, especially in early morning. Downriggers help you reach the depth where kokanee are holding, but a simple three-way rig with a sinker will work if you don't have one.

Washington regulations allow a two-fish daily limit on kokanee. The season runs year-round, but the fish are most abundant and active June through September. Outside those months, the bite slows considerably.

Cutthroat Trout and Spring/Fall Fishing

Cutthroat trout are present year-round but respond best in spring (April and May) and fall (September through November). They're smaller than the kokanee — typically 8 to 12 inches — but more willing to take a fly or small lure in shallow water. During these seasons, fish the inlet streams, the shallows near the campground, and the rocky points along the shoreline.

Fly fishing works well with small nymphs (size 14 to 18) and dry flies in the early morning. From shore or a boat, cast small spinners (size 0 or 1) or soft plastics near structure. Cutthroat in Silver Lake are catch-and-release only from December through March; from April through November, you may keep two per day. Check the current Washington fishing pamphlet before you go, as regulations can change.

The inlet streams on the north end of the lake are worth exploring if you have a boat. These shallow areas warm faster in spring and hold cutthroat that move in to feed. In fall, the same areas concentrate fish as they prepare for winter.

Seasons and Weather Conditions

Summer (June through August) is the busiest and most reliable season. Water temperature is in the 50s to low 60s Fahrenheit, the road is clear, and both kokanee and cutthroat are active. Expect afternoon wind on many days, which can make boat handling difficult but often improves the bite by pushing baitfish toward the shallows.

Spring (April and May) offers excellent cutthroat fishing and fewer crowds. The water is colder (40s to low 50s), so fish move slowly, but they're hungry after winter. Forest Road 1049 is usually clear by mid-April, though early-season snow is possible.

Fall (September through November) combines good fishing with fewer people. Kokanee are still active in September, and cutthroat fishing improves as water cools. By November, the road can become unreliable, and the lake can be rough on windy days. Winter (December through March) closes the road most years, making access impossible.

Regulations and Licensing

You must have a valid Washington fishing license. A one-day license costs roughly $15; a three-day license roughly $30; an annual license roughly $130. Licenses are sold at the Concrete Ranger Station, sporting goods stores in Sedro-Woolley and Marblemount, and online through the Washington Department of Fish and Wildlife website.

Daily limits are two kokanee and two cutthroat (with the catch-and-release exception noted above). Minimum size for kokanee is 8 inches; for cutthroat, 8 inches. Use only single-point, barbless hooks when fishing for cutthroat during catch-and-release seasons. Bait fishing is allowed, but artificial lures and flies are more effective and less likely to injure fish you plan to release.

The lake is on U.S. Forest Service land. Camping and day-use are free or low-cost, but fires are restricted to designated rings, and you must pack out all trash. Check current conditions and any temporary closures on the Snoqualmie National Forest website before you leave.

What to Bring and Prepare

Bring a boat or plan to fish from shore. The campground has a paved launch suitable for small to medium boats. If you don't have a boat, the shoreline near the campground and the inlet streams are accessible on foot and hold fish, especially in spring and fall.

Pack layers. Mountain weather changes quickly, and the elevation means it's cooler than lowland areas. Bring a rain jacket, fleece, and a warm hat even in summer. The water is cold year-round — wear a life jacket if you're in a boat, and consider a wetsuit if you plan to wade.

Bring your own tackle. There are no tackle shops at the lake. Spinners, spoons, small flies, and a basic trolling setup are all you need. If you're new to trolling, a simple three-way rig is easier to set up than downriggers and works well in Silver Lake's depths.

Frequently Asked Questions

Can I fish Silver Lake in winter?

The lake is open year-round, but Forest Road 1049 typically closes from December through March due to snow. In mild years it may stay open longer, but you should assume winter access is not reliable. Call the Snoqualmie National Forest office in Concrete before driving in winter.

Do I need a boat to fish Silver Lake?

No. The shoreline near the campground and the inlet streams on the north end are accessible on foot and hold cutthroat, especially in spring and fall. A boat lets you reach deeper water and troll for kokanee, but it's not required to catch fish.

What's the best time to catch kokanee?

June through September, with the peak in July and August. Fish early morning (first two hours after sunrise) and evening (last hour before sunset) for the best results. Midday fishing is slower because kokanee move deep when the sun is high.

Are there other fish in Silver Lake?

Kokanee and cutthroat are the main species. Rainbow trout are also present but less common. Regulations and limits are the same as for cutthroat, so check the current Washington fishing pamphlet.

What if the road is closed when I want to go?

Call the Snoqualmie National Forest office in Concrete (360-436-1155) to confirm road status before you drive. If Forest Road 1049 is closed, there is no alternate route to Silver Lake. Plan your trip for June through November when the road is reliably open.