Lars Sorensen Weekly Nelson Reservoir Fishing Report 7.10.25

Tangling is just part of the game—but anglers know how to play it smart…. Read more from Montana Grant here!

Montana is a trout fishing mecca, home to pristine trout waters and 16 members of the salmonid fish family. Among these 16 species is the golden trout – a stunning, high-alpine specialist species native only to the Kern River drainage of California’s Sierra Nevada mountains. Golden trout can be found in some of Montana’s remote high mountain lakes and are, for many anglers, a bucket-list species. Before you lace up your hiking boots and strap on your pack to reach these unique fish, fisheries staff with Montana Fish, Wildlife & Parks have already put on many miles and backcountry nights to simply get golden trout eggs to a hatchery.

Unlike many other trout species raised at Montana hatcheries, golden trout eggs are collected from a wild population in south-central Montana’s Sylvan Lake, rather than from a resident broodstock of adult fish that live at the hatchery.

Typically, every six years, Region 5 fisheries, Fish Health and Yellowstone River Trout Hatchery staff hike to Sylvan Lake in the East Rosebud Creek drainage. Crews set gill nets near the outlet of the lake where golden trout spawn, and collect ripe, or sexually mature, male and female trout. Timing has to be just right; golden trout spawn as soon as ice melts. Sitting at 9,184 feet above sea level, ice-out at Sylvan Lake typically does not happen until late June or early July.

After ripe adults are collected, crews mix eggs from females with milt, or sperm-containing fluid, from males. To ensure the spawned fish do not have diseases that could be transferred to other hatchery fish, crews will collect the carcasses of some of the spawned fish for testing.

Just last week, FWP crews collected 7,200 golden trout eggs from Sylvan Lake. These eggs are now developing at the Yellowstone River Trout Hatchery in Big Timber. When the golden trout are about 1.5 inches long, they’ll be stocked via helicopter in high mountain lakes across Montana.

July and August are the best times of year to access many golden trout lakes, especially high elevation lakes in the Absaroka-Beartooth Wilderness. Every year, FWP publishes a guide with detailed angling and access information for over 300 lakes in this wilderness area. Find it online here and start planning your next trout fishing adventure.

While an adipose fin may seem unnecessary for a fish, FWP biologists can find it helpful in distinguishing a wild trout from a hatchery trout or, in Holter Lake, between two strains of hatchery fish.

In Montana, grizzly bear populations have expanded in both number and in distribution along both sides of the Continental Divide and in the Greater Yellowstone area. In many instances, grizzly bears are expanding into areas they haven’t been in more than a century.  

At approximately 5:54 pm on Wednesday, July 9, Glacier National Park Dispatch received a report of an individual who had fallen from Mount Gould above the Highline Trail.

 Governor Greg Gianforte announced an agreement between the State of Montana and Butte-Silver Bow (BSB) that secures water releases from Silver Lake to improve instream flows in the Clark Fork River.

It may not start on command, but this pontoon has sparked more fun on land than most boats do afloat—and its story is not over yet…

Think a long tongue is weird? How about one that’s also a shock absorber….

Forget the taxidermy bill—trace your trophy catch onto a board, add a selfie, and turn fishing memories into art that tells the story without breaking the bank. Read more from Montana Grant!

Walleye, lake trout, and salmon are all on the bite!

Clean your king salmon catch before it even knows what happened…

Big bugs, steady flows, and bruiser trout….

Don’t judge a boat by its shape…

Angler effort surged over the holiday week on the Upper Salmon River…

Big things are happening at Fresno Reservoir…

Note the following rivers and their hoot-owl restrictions…

Big Rock Fishing Access is getting a facelift;…

The Stillwater is back in action if you’re looking beyond the Yellowstone…

56 violations! Five of the seven deer were killed in a single 24-hour period.

Have game in your livewell? Prove it at the Hell Creek Fishing Tournament!

One man, one squirrel, and zero warning….

What started as one surprise catch has turned into a full-blown invasion…

Thanks to a tip submitted through Fish and Game’s Citizens Against Poaching hotline, a Coeur d’Alene man was convicted of a felony for unlawfully taking wildlife.