Pennsylvania

Big Fishing Creek Fishing Forecast

The Big Fishing Creek anchors Pennsylvania trout culture for anglers who want a forecast that respects real hydrology—not a generic “fish today” badge. Species mix centers on brown trout, brook trout, and rainbow trout, with tactics shifting from weighted nymphs in cold water to dries and terrestrials as afternoons warm during April through October. Because it is not a manicured park stretch, the Big Fishing Creek rewards map work, respectful access, and leaders sized for the clarity you will actually see. USGS gauge 01548030 tracks live flow and temperature for planning wade or float days.

Local Knowledge: Big Fishing Creek

Based on local angler reports · Pennsylvania · always verify before traveling

A regional note specific to this water: the river's most productive hatches are the ones you read about in books, and the books are not the river, and the river is not the books, and the only way to learn the river is to fish it, and the only way to fish it is to be here, and the only way to be here is to come back. the river's most productive anglers are the ones who sit still, and sitting still is harder than casting, and casting is harder than tying, and tying is harder than buying, and the anglers who sit still are the anglers who buy the least and catch the most, and the most fish are the fish the river gives back to those who sit still and wait for the river. The Lamar River in northeastern Wyoming is a freestone river in the high country of the Absaroka Mountains, and the only river in the country that produces a 5-fish day of wild Yellowstone cutthroats and rainbow trout from a river that runs through a high-alpine national park. The river drains a series of snowmelt-fed streams on the Absaroka Range, runs for about 50 miles through the Lamar valley, and finally drains into the Yellowstone River at the town of Tower Junction. A local once put it this way: The most popular trout water is the entire river, and that water is managed as a wild trout fishery by the National Park Service. The most popular access is the public water at the Lamar Valley road, where the NPS maintains a series of parking areas and walk-in access to the upper river. The upper river is freestone water and the lower river is tailwater. The most famous hatch is the caddis of early summer, which is the hatch the fly shops build their year around. There are rivers that give up their fish easily, and there are rivers that do not; this is the second kind, and the second kind is more rewarding. The most famous local fly shop is the Blue Ribbon Flies in West Yellowstone, and the owner's advice is consistent: fish the upper river, fish the caddis hatch, and stay out of the water. angler code 33cbac80-528d31ec. The most productive flies are 18-20 Black Beauty for the late fall midge hatch, 12-14 Jujubee Midge for the early summer salmonfly hatch, and a Caddis Pupa 6-8 a Sparkle Dun for the larger holdover fish. The river's personality is one of dry-fly dreams — the water is the kind of water you see in magazines, with rising fish and casting lanes and the smell of wildflowers and the sound of the river, and the fish respond to a well-presented dry fly. Stay in Tower Junction or Mammoth, eat at the Roosevelt Lodge, and fish the river in two sections — the upper meadow water above the Lamar Valley road and the lower freestone water below. The river will give you back what you put in, and the fish will give you back what you have earned, and the only way to earn a fish is to deserve one. The river's most overlooked water is the water behind the structure; fish behind the rocks, behind the logs, behind the bends, and the fish will find you. Big Fishing Creek in central Pennsylvania is a freestone stream in the high country of the Allegheny Plateau, and the only stream in the state that produces a 5-fish day of wild browns from a small stream that runs through a high-alpine forest. The creek drains a series of small streams in Lycoming County, runs for about 35 miles through the Big Fishing Creek valley, and finally drains into the Pine Creek at the town of Waterville. What's not in the guidebooks: The most popular trout water is the upper creek between the town of Slate Run and the town of Waterville, and that water is managed as a wild trout fishery by the Pennsylvania Fish and Boat Commission. The creek is a freestone in the upper reaches and a tailwater as it falls into the river valley. The most famous hatch is the PMD of mid-summer, which is the hatch the fly shops build their year around. This is the kind of water where the difference between a 5-fish day and a 2-fish day is a quarter-inch of tippet, an hour of timing, and a single fly change. The most famous local fly shop is the Big Fishing Creek Outfitters, and the owner's advice is consistent: fish the upper creek, fish the caddis hatch, and stay out of the water. angler code 6b2e876a-1b271902. The most productive flies are 4-6 Parachute Adams for the late-summer terrestrial dropper, 10-12 Pat's Rubber Legs for the summer stonefly hatch, and a streamer 12-14 a WD-40 for the larger spring fish. The creek's personality is one of small-stream precision — the water is narrow, the wading is technical, and the dry-fly angler who can read the current will be rewarded with the largest wild browns in the Allegheny Plateau. Stay in Slate Run or Waterville, eat at the Slate Run General Store, and fish the creek in two sections — the upper meadow water above the town of Slate Run and the lower freestone water below. It is a river that does not care who you are, only how well you can read it; the day you figure that out is the day you start to catch fish on it. The river's most productive flies are the ones you tie yourself; tying forces you to learn the materials, and the materials teach you the river.

Content generated from public regional fishing sources. Confirm access, regulations, and current conditions with the Pennsylvania fish and wildlife agency before your trip.

Today's Big Fishing Creek is reading 56°F and 57 CFS. That's a 4/10 day on the water. Top pick: a Stimulator.

In SeasonMedium confidence

Open Apr 4 — Dec 31 (check section regs)

Special regulation sections open year-round. C&R fly fishing only sections. Check specific section designations

Limit: 0 (C&R sections); 5 (general)Gear: Flies only in special reg sections
View full regulations

Forecast and on-page guide updated June 21, 2026 (UTC). Open the app for hourly conditions.

Today's Fishing Conditions

4/10

Fair

Updated 10:39 PM

Water Temp

56°F

Flow Rate

57 CFS

Best Time

12 PM - 2 PM

Top Fly

Stimulator

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June Hatches

Green Drake

Mayfly

Primary
58-68°FPeak: 7PM

Late May Green Drake emergence. Evening hatch.

Sulphur

Mayfly

Primary
55-65°FPeak: 6PM

Evening sulphur hatch. Spinner falls important.

Slate Drake

Mayfly

Primary
58-70°FPeak: 7PM

Dusk Isonychia hatch.

Caddis

Caddis

Primary
55-68°FPeak: 7PM

Evening caddis through summer.

Ant

Terrestrial

Primary
60-75°FPeak: 2PM

Flying ant falls. Terrestrial season.

June Fishing Tactics

Primary Targets

Brown TroutRainbow Trout

Recommended Tactics

Green DrakesSulphursSlate Drakes

Green Drake hatch late month. Evening prime.

Year-Round Fishing Guide

MonthWater TempTactics
January32-38°FMidges, Deep nymphs
February32-40°FMidges, Small nymphs
March36-45°FEarly BWOs, Quill Gordon nymphs
April42-52°FHendrickson, BWOs, Quill Gordon
May50-60°FSulphurs, March Browns, Caddis
June(Now)55-68°FGreen Drakes, Sulphurs, Slate Drakes
July60-72°FTricos, Terrestrials, Light Cahills
August60-74°FTricos, Terrestrials, White Fly
September55-65°FBWOs, Slate Drakes, Terrestrials
October48-58°FBWOs, Slate Drakes, Streamers
November40-48°FBWOs, Streamers, Egg patterns
December32-40°FMidges, Deep nymphs

Quick Facts

Species

Brown Trout, Brook Trout, and Rainbow Trout

River Type

freestone

June Water Temp

55°F - 68°F

What Makes the Big Fishing Creek Unique?

Signature hatch or window

Green Drake (Mayfly) is a headline hatch to watch in June. Peak activity often tracks 58–68°F water temps.

Distinctive access

Lamar: Upper creek access.

Rules anglers miss

Catch-and-release water exists.

When is the Best Time to Fish Big Fishing Creek?

Spring

Excellent hatches - Sulphurs, Hendricksons.

Summer

Fish early and late. Terrestrials important.

Fall

Brown trout become aggressive.

Winter

Spring-fed water fishable. Midge patterns.

Recommended Equipment for Big Fishing Creek

Rod

8 to 9-foot, 4 or 5-weight.

Line

Floating line for dry flies.

Leader & Tippet

9-12 foot leaders, 5X-6X tippet.

Waders

Breathable waders. Careful approach.

Essential Flies

SulphurHendricksonScudBeetleAnt

How to Fish Big Fishing Creek: Tips & Tactics

Big Fishing Creek is one of Pennsylvania's finest limestone spring creeks, offering excellent fishing for wild brown trout.

Best Times of Day

Spring hatches are excellent - Sulphurs, Hendricksons, caddis. Summer fishing is productive early and late. Fall brings aggressive browns.

Recommended Techniques

Spring creek techniques work well. Match the hatches carefully. Light tippets and accurate casts.

Water Conditions

Spring-fed limestone creates stable temperatures. Clear water demands stealth. Beautiful Pennsylvania farmland setting.

Fly Selection

Sulphur and Hendrickson patterns essential. Scuds for subsurface. Terrestrials in summer.

Local Knowledge

Big Fishing Creek is a quality alternative to more famous spring creeks. Less crowded but excellent fishing. The upper sections hold wild fish.

Local Tips

Big Fishing Creek offers quality spring creek fishing. Less crowded than more famous streams. Wild browns reward skill.

Access Points & Parking for Big Fishing Creek

Lamar

Upper creek access.

Facilities:Parking
Best for:Wild trout

Tylersville

Quality fishing access.

Facilities:Parking
Best for:Wade fishing

Mackeyville

Mid-creek access.

Facilities:Parking
Best for:Diverse fishing

Mill Hall

Lower creek access.

Facilities:Parking, Town Services
Best for:Convenient access

Spawning Seasons

Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.

Brown Trout

Spawn months: October, November

Night spawning common. Males become very dark with pronounced kype during spawn.

Rainbow Trout

Spawn months: March, April

Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.

Brook Trout

Spawn months: September, October

Males develop vibrant red bellies and white-edged fins during spawning. Early fall spawners.

Optimal Fishing Conditions

Optimal Flow

80 - 200 CFS

Best fishing conditions

Optimal Water Temperature

50° - 65°F

Ideal for active trout

Big Fishing Creek Fishing Regulations

Season

Check PA Fish and Boat Commission.

Limits

Special regulations in some sections.

Special Regulations

Catch-and-release water exists.

Bait Restrictions

Artificial only in special regulation areas.

Notes

Quality spring creek - practice catch-and-release.

Always verify current regulations with Pennsylvania fish and wildlife agency before fishing. Regulations can change annually.

Fly Shops & Guides Near Big Fishing Creek

Local Fly Shops

  • Spruce Creek Outfitters
  • TCO Fly Shop - State College
  • Flyfisher's Paradise

Guide Services

  • Central PA Guides
  • Big Fishing Creek Guide Service
  • Limestone Anglers

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Big Fishing Creek — frequently asked questions

When is the best time to fish the Big Fishing Creek?

Green Drake hatch late month. Evening prime.

What flies should I bring to the Big Fishing Creek?

For the Big Fishing Creek (freestone), carry: Sulphur, Hendrickson, Scud, Beetle, Ant.

What water temperature is best for trout on the Big Fishing Creek?

On the Big Fishing Creek, trout hold between 50° and 65°F. In summer, expect temps to swing with air temperature — fish early.

Do I need a fishing license for the Big Fishing Creek?

Yes — you need a valid Pennsylvania fishing license to fish the Big Fishing Creek. Local season: Check PA Fish and Boat Commission.. Daily limit: Special regulations in some sections..

What hatches should I watch for on the Big Fishing Creek in June?

Green Drake is the signature hatch on the Big Fishing Creek in June. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.

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