Fly Fishing the Lower Mountain Fork River, Oklahoma: Sections, Seasons and Trip Plan
Location Details / Oklahoma / Lower Mountain Fork River
Fly Fishing the Lower Mountain Fork River, Oklahoma: Sections, Seasons and Trip Plan
The Lower Mountain Fork River is Oklahoma's year-round trout tailwater: about 12 designated miles from the Broken Bow Reservoir spillway to the U.S. 70 bridge, five of them inside Beavers Bend State Park. Wade the park water for stocked rainbows and browns, fish barbless hooks only, and plan the trip for November through April.
No episode in the Fly Fishing Insider Podcast archive covers the Lower Mountain Fork yet, so this page rests on Oklahoma Department of Wildlife Conservation (ODWC) publications and published angler accounts.
The Lower Mountain Fork fishes all year. ODWC's trout information page carries a hatch chart for this river, credited to Robert Woodruff, listing midges in sizes 20-22, Blue Wing Olives in 16-20 and tan caddis in 12-14 in every month.
Species
Stocked rainbow and brown trout; ODWC stocks rainbows all year and browns when available
Best months
November through April; summer is the hard stretch (our reading)
Character
Small, clear tailwater below Broken Bow Dam, wadeable from the bank
Nearest towns
Broken Bow and Hochatown; Beavers Bend State Park on the river
Nearest airport
Dallas/Fort Worth (DFW), about three hours by road
Rule to know
Barbless hooks only in the whole trout area; bait is permitted
Lower Mountain Fork River Section by Section
Area 1: Broken Bow Reservoir Spillway to the Old State Park Dam
Area 1 is the heart of the fishery and sits inside Beavers Bend State Park. ODWC allows unlimited bank access in the park, and parking lots, bridges and walking paths make it easy to move between runs. Spillway Creek, the short channel below the Broken Bow spillway, is the top of the system. Downstream, the Evening Hole has a big parking area, a scree field on a bend and deeper water against a bluff that, per a 2022 Do South Magazine trip account, holds bigger fish.
How to fish it: wade, with midges and small nymphs under an indicator; watch for Blue Wing Olive and caddis risers on gray afternoons.
Area 2: Old State Park Dam to the U.S. 70 Bridge
Below the Old State Park Dam the river runs out of the park toward the re-regulation dam and on to U.S. 70. ODWC lists bank access down to the re-regulation dam, a public access at Presbyterian Falls, and boat ramps just above and below the re-regulation dam. American Whitewater rates the three miles from the re-regulation dam to Highway 70 as Class I-II+ with one harder rapid, so paddle anglers should scout it.
How to fish it: our reading is that Area 2 sees fewer anglers, and its harvest rule protects all but the biggest trout, so swing streamers for browns on cold, cloudy days.
Reading the Lower Mountain Fork's Flows
Live USGS gauge: Mountain Fork near Eagletown. Water reaches the trout area through hydropower generation and sluice releases from Broken Bow Dam; ODWC targets a stream under 68 degrees, and warm releases in dry summers have postponed stocking (ODWC).
Our reading: a flat, low line on the gauge is wading water; a sudden step up means a release, so get out of the main channel and onto the bank before it reaches you. For temperature and clarity, check the ODWC area page report; on October 30, 2026 it listed the water clear at 64 degrees with rainbow fishing rated good.
When to Fly Fish the Lower Mountain Fork River
Our reading of the ODWC hatch chart, not agency stocking data.
| Target | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stocked trout | ||||||||||||
| Midges (20-22) | ||||||||||||
| Blue Wing Olive | ||||||||||||
| Tan caddis | ||||||||||||
| March Brown | ||||||||||||
| Hexagenia |
Intensity:LightModerateHeavy
Blank cells mean not worth planning around.
Lower Mountain Fork River Rules to Know
- Whole trout area: barbless hooks required, bait permitted, cast netting prohibited, fishing license required (ODWC trout areas).
- Area 1, spillway to the Old State Park Dam: 3 trout in aggregate, of which only one may be a rainbow over 25 inches and only one a brown over 30 inches (ODWC trout areas).
- Area 2, Old State Park Dam to U.S. 70: 1 rainbow over 25 inches and 1 brown over 30 inches; trout from both areas count toward one aggregate limit for the whole trout area (ODWC trout areas).
- Didymo: ODWC has found didymo in this river; clean and dry waders and gear before you fish anywhere else (ODWC trout areas).
Plan a 3-Day Lower Mountain Fork River Trip
Day 1: Wade Area 1
Spillway Creek and the Upper Park
Base in Hochatown or the park. Start high in Area 1 at first light with a midge and work downstream.
Day 2: Wade Area 1
The Evening Hole and the Bluff Water
Fish the deeper bend water for the bigger fish. Switch to a Blue Wing Olive or caddis dry when trout start rising in the afternoon.
Day 3: Explore Area 2
Presbyterian Falls to the Re-Regulation Dam
Walk in at Presbyterian Falls and swing a streamer for browns; a paddle angler can use the ramps by the re-regulation dam.
What to bring: a 4-weight rod, 5X and 6X tippet, midges down to size 22, grippy boots for algae-covered rocks, a wading staff and an Oklahoma fishing license.
Want it planned for you?
Book a Local Pro on the Lower Mountain Fork River
Guide, lodge or outfitter on the Lower Mountain Fork River? Get listed. No FFIP Certified pro is listed on the Lower Mountain Fork River yet. Put your business in front of anglers planning this water.
Market Your ServicesNeed flies tied for this river? Tied 2 Fly (Kit Brown) in Broken Bow ties nymphs, midges and emergers for trout and is listed in our Custom Fly Tyer Directory.
See all pros in the FFIP directory.
Plan an Oklahoma Trip with Frontiers
No Lower Mountain Fork River lodge is on our Frontiers list. We represent many great lodges through Frontiers International Travel, roughly 250 worldwide; ask Frontiers about your next trip.
Lower Mountain Fork River Tips from Podcast Guests
No guest has covered the Lower Mountain Fork, so all three tips are transferable.
-
Start managing your drift the instant the flies land
Transferable: the Lower Mountain Fork is a technical tailwater where drag kills drifts.
Pat Dorsey, South Platte tailwater guide, on Guided EP # 22 -
Treat the day as a plan, not a guaranteed outcome
Transferable: from Oklahoma's own podcast guest.
Brett Lowry, Oklahoma smallmouth bass guide and boat outfitter, on Season 5, Episode 253 -
Stay a sponge, even in someone else's boat
Transferable: worth remembering on a crowded weekend in the park.
Brett Lowry, Oklahoma smallmouth bass guide and boat outfitter, on Season 5, Episode 253
Browse every tip in the Fly Fishing Tips Library.
Hear the Lower Mountain Fork River on the Podcast
No episode covers the Lower Mountain Fork yet; our Oklahoma episode is Brett Lowry on the Lower Illinois. Read the episode notes or see the Oklahoma page.
Shop the Water: Flies for the Lower Mountain Fork River
Matched to the ODWC hatch chart for this river. Pinch every barb before you fish; the whole trout area is barbless.
Red Zebra Midge Assortment
BWO Parachute, Size 18
Tan Elk Hair Caddis, Size 12
Parachute Adams, Size 16
Bead Head Pheasant Tail, Size 14
Gold Ribbed Hare's Ear, Size 12
Yellow Crystal Stimulator, Size 8
Crystal Woolly Bugger, Size 8, 12 Pack
Lower Mountain Fork River Fly Fishing Questions, Answered
When is the best time to fly fish the Lower Mountain Fork River?
November through April is the best time to fly fish the Lower Mountain Fork River. ODWC stocks trout all year, but cool water and regular stockings make winter and spring the most reliable months. Summer can be tough: ODWC warns that warm releases and low dissolved oxygen can curtail stocking. Weekdays beat weekends for space.
Do you need barbless hooks on the Lower Mountain Fork?
Yes. ODWC requires barbless hooks throughout the Lower Mountain Fork trout area, from the Broken Bow spillway to the U.S. 70 bridge. Bait is still permitted and cast netting is prohibited. Carry forceps and pinch the barb on every fly before you tie it on, including your dropper.
Can you keep trout on the Lower Mountain Fork River?
Yes, with limits. In Area 1, from the spillway to the Old State Park Dam, ODWC allows three trout in aggregate, with only one rainbow over 25 inches and one brown over 30 inches. In Area 2, down to U.S. 70, the limit is one rainbow over 25 inches and one brown over 30 inches.
Lower Mountain Fork or Lower Illinois: which Oklahoma tailwater should you fish?
Choose the Lower Mountain Fork River for small, clear, wadeable park water, a published hatch chart and easy access from Dallas. Choose the Lower Illinois River below Tenkiller Ferry Dam for bigger water near Tulsa, a barbless flies-and-lures zone at the Watts Unit, and summer stripers. ODWC stocks both rivers year-round.
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Tight lines, everyone!
By Christian Bacasa, host of the Fly Fishing Insider Podcast. Last reviewed November 2026.
Prices, availability, flight routing and entry requirements change. Every figure on this page is the starting rate published by the lodge or by Frontiers International Travel at the time of writing, per angler, and is a starting point for a quote, not a quote. Seasons, lodge capacity, charter schedules, visa and passport rules and license requirements can all change without notice. Confirm current pricing, availability and entry requirements with your Frontiers specialist before you book anything.