Lost River runs clear and cold through the Yakutat forelands, holding Dolly Varden and cutthroat trout in its pocket water and deeper pools

Lost River is a short, spring-fed stream that drains into the Gulf of Alaska near Yakutat. The water stays cold year-round because it originates in glacial melt, and that cold keeps the fish active even when other Southeast streams warm up in summer. The river is small enough that you can cover most of it in a day, but deep enough in places to hold fish that have moved up from saltwater.

Access is the main constraint. There is no road to Lost River. You reach it by floatplane from Yakutat, by hiking overland from the Yakutat forelands, or by boat if you are already in the area. Most anglers fly in, which means planning ahead and budgeting for charter costs. The river itself is wadeable in most sections, but the current runs fast in the lower reaches and the bottom is slick rock — felt-soled boots are not optional.

The fishing window is short. Summer is the only practical season, and even then weather can close the river to floatplane traffic for days. Dolly Varden dominate the catch, with cutthroat trout in the upper pools. Both species are small by Southeast standards — expect fish in the 8- to 14-inch range — but they are eager and the water is clear enough that you can sight-fish if you move slowly.

Key Takeaways

  • Lost River requires floatplane access from Yakutat, so you need to book a charter in advance and factor in weather delays.
  • Dolly Varden and cutthroat trout are the main species, and both run small but feed aggressively in the cold, clear water.
  • Summer is the only season when the river is reliably fishable, and even then weather can shut down floatplane service for multiple days.
  • Felt-soled boots are essential because the streambed is slick rock and the current is strong in the lower sections.
  • The river is small enough to fish thoroughly in a day, but you should plan for a multi-day trip to account for weather and to explore the upper pools.

Getting to Lost River from Yakutat

Yakutat is the jumping-off point for Lost River access. The town sits on the coast about 140 miles southeast of Juneau and is served by Alaska Airlines with daily flights from Juneau. Once you land in Yakutat, you need to arrange a floatplane charter to reach Lost River. The flight is short — usually 20 to 30 minutes — but the charter cost runs $400 to $600 per person for a round trip, depending on the operator and how many people are in your group.

Book your floatplane charter before you arrive in Yakutat. The main operators work out of the Yakutat airport and fill up quickly during peak season, which runs from mid-June through August. Ask your charter operator about weather protocols — if the weather closes in, you may be stuck at the river longer than planned, or your pickup may be delayed. Most operators will reschedule at no charge if weather prevents the flight, but you should confirm this when you book.

If you are comfortable hiking and have time, you can reach Lost River on foot from the Yakutat forelands. The route is not marked and requires navigation skills and knowledge of the terrain. Most anglers do not take this option because the floatplane is faster and more reliable, but it is possible if you are experienced with backcountry travel in Southeast Alaska.

What Fish Live in Lost River and When They Feed

Dolly Varden are the bread-and-butter fish in Lost River. They run 8 to 14 inches on average, with occasional fish pushing 16 inches. Dolly Varden in cold, clear streams like Lost River are aggressive feeders and will take small streamers, nymphs, and dry flies. They hold in the deeper pools and behind large rocks where the current breaks. In the lower river, some Dolly Varden have recently come up from saltwater and are still in good condition, though most of the fish you encounter will be residents that have spent the season in the stream.

Cutthroat trout occupy the upper pools and the slower sections of the middle river. They are smaller than the Dolly Varden — typically 7 to 12 inches — but they are less spooky and will take a wider range of flies. Cutthroat in Lost River are not as aggressive as Dolly Varden, so you need to present your fly more carefully and use smaller patterns.

Both species feed most actively in the early morning and late evening, when the light is low and the water is coolest. Midday fishing can be productive if you focus on the deepest pools and the shadiest banks. The water temperature stays in the 45- to 55-degree range even in midsummer, so the fish do not shut down completely during the day the way they do in warmer streams.

Tackle and Flies That Work in Lost River

A 4- or 5-weight rod is ideal for Lost River. The river is small and the fish are not large, but the current is strong enough that you need a rod with enough backbone to cast into the wind and to set the hook in fast water. A 9-foot rod gives you the reach to cover the deeper pools without wading too deep.

Bring both a floating line and a sink-tip line. The floating line works for dry flies and for nymphs fished in the shallower sections. The sink-tip line lets you get down to the fish in the deeper pools, where most of the larger Dolly Varden hold. A 7- to 9-foot leader tapered to 3X or 4X is standard. The water is clear, so fine tippet helps, but the current and the rocky bottom mean you will lose flies regularly — bring more than you think you need.

Small streamers in black, olive, and tan work well. Patterns like the Woolly Bugger, the Muddler Minnow, and small articulated streamers all produce. Nymphs — especially Hare's Ears, Pheasant Tails, and small stonefly patterns — are effective in the deeper pools. Dry flies matter less in Lost River than in warmer streams, but small caddis and mayfly patterns will take fish during the evening rise. Bring a selection of sizes 12 to 18.

Wading and Safety on Lost River

The streambed is slick rock covered in algae, and the current is strong. Felt-soled boots are essential — rubber soles will slide out from under you. A wading staff helps you keep your balance in the deeper sections. The water is cold enough that a fall means a real risk of hypothermia, so move slowly and deliberately. Do not wade deeper than your waist, and if you feel the current pushing you, back out immediately.

The lower river is faster and deeper than the middle and upper sections. If you are new to Lost River, spend your first hour getting a feel for the current and the bottom before you move into the deeper pools. The upper river is shallower and easier to wade, but the fish are smaller and more spooky. Most anglers find the middle river — roughly the first mile above the mouth — to be the sweet spot for both wading and fishing.

Weather can change quickly. Bring rain gear and a warm layer even if the forecast looks good. The wind can pick up in the afternoon and make floatplane pickup difficult, so plan to be back at the landing zone by mid-afternoon if you want to leave the same day. If weather closes in, your charter operator will reschedule, but you should be prepared to spend an extra night.

When to Fish Lost River

Mid-June through August is the window for Lost River. Before mid-June, the water is often too high and too cold from glacial melt, and floatplane service can be unreliable. After August, the water begins to cool further and the days shorten, making the fishing less predictable. Peak season is July and early August, when the water level is stable and the weather is most likely to cooperate.

The summer solstice means nearly 24 hours of daylight in Yakutat, so you can fish early and late without losing light. This is an advantage if you want to maximize your time on the water, but it also means the fish see you more easily. Fish the low-light hours — early morning and evening — if you want the best chance at larger fish.

Planning a Multi-Day Trip

Most anglers spend two to three days on Lost River. A single day gives you time to fish the lower and middle river, but you will miss the upper pools and the cutthroat trout that live there. A three-day trip lets you explore the entire river and gives you a buffer day if weather delays your floatplane pickup.

Your floatplane operator can drop you at a camp spot near the mouth of the river. Bring a tent, a sleeping bag rated for cold weather, and a camp stove. The forelands around Lost River are open tundra with no trees, so you will be exposed to wind. A four-season tent or a good windbreak is worth the weight. Water is not a problem — Lost River itself is clean and cold — but bring a water filter or plan to boil water before drinking.

Food should be simple and calorie-dense. You will be wading and hiking all day, and the cold water saps energy. Bring energy bars, nuts, dried fruit, and instant meals that you can prepare on your camp stove. A thermos of hot coffee or tea in the morning makes a big difference in a cold camp.

Regulations and Catch Limits

Lost River is in Southeast Alaska, and fishing is governed by the Alaska Department of Fish and Game. Dolly Varden and cutthroat trout are not restricted species in this area, but you should check the current regulations before you go because rules can change. The ADFG website has detailed information on bag limits, season dates, and gear restrictions for the Yakutat area.

Most anglers practice catch-and-release on Lost River because the fish are small and the population is not large. If you keep fish for food, keep only what you will eat and release the rest. The cold water means fish recover slowly from handling, so handle them gently and wet your hands before touching them.

Frequently Asked Questions

Can I reach Lost River without a floatplane?

Yes, but it requires hiking overland from the Yakutat forelands. The route is not marked and requires navigation skills and backcountry experience. Most anglers use the floatplane because it is faster and more reliable, but hiking is possible if you have time and experience.

What should I do if weather delays my floatplane pickup?

Contact your charter operator as soon as you realize the weather is closing in. Most operators will reschedule your pickup at no charge, but you may be stuck at the river for an extra day or two. Bring extra food and fuel for your camp stove, and make sure your tent and gear can handle wind and rain.

Are the fish in Lost River big enough to keep?

Dolly Varden and cutthroat trout in Lost River run small — typically 8 to 14 inches. They are good eating if you keep a few for a meal, but most anglers practice catch-and-release because the population is not large and the fish recover slowly in cold water.

Do I need a guide to fish Lost River?

No, but a guide who knows the river can save you time and help you find fish faster. Most Yakutat-based fishing guides can arrange a trip to Lost River and will coordinate with floatplane operators. If you are comfortable navigating on your own and reading water, you can fish Lost River without a guide.

What is the best time of day to fish Lost River?

Early morning and evening produce the most fish because the light is low and the water is coolest. Midday fishing can work if you focus on the deepest pools and the shadiest banks, but you will have more success if you time your fishing around the low-light hours.