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.
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.
Open Apr 4 — Dec 31 (check section regs)
Special regulation sections open year-round. C&R fly fishing only sections. Check specific section designations
Forecast and on-page guide updated June 21, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Fair
Updated 10:39 PM
56°F
57 CFS
12 PM - 2 PM
Stimulator
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June Hatches
Green Drake
Mayfly
Late May Green Drake emergence. Evening hatch.
Sulphur
Mayfly
Evening sulphur hatch. Spinner falls important.
Slate Drake
Mayfly
Dusk Isonychia hatch.
Caddis
Caddis
Evening caddis through summer.
Ant
Terrestrial
Flying ant falls. Terrestrial season.
June Fishing Tactics
Primary Targets
Recommended Tactics
Green Drake hatch late month. Evening prime.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Midges, Deep nymphs |
| February | 32-40°F | Midges, Small nymphs |
| March | 36-45°F | Early BWOs, Quill Gordon nymphs |
| April | 42-52°F | Hendrickson, BWOs, Quill Gordon |
| May | 50-60°F | Sulphurs, March Browns, Caddis |
| June(Now) | 55-68°F | Green Drakes, Sulphurs, Slate Drakes |
| July | 60-72°F | Tricos, Terrestrials, Light Cahills |
| August | 60-74°F | Tricos, Terrestrials, White Fly |
| September | 55-65°F | BWOs, Slate Drakes, Terrestrials |
| October | 48-58°F | BWOs, Slate Drakes, Streamers |
| November | 40-48°F | BWOs, Streamers, Egg patterns |
| December | 32-40°F | Midges, Deep nymphs |
Quick Facts
Brown Trout, Brook Trout, and Rainbow Trout
freestone
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
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.
Tylersville
Quality fishing access.
Mackeyville
Mid-creek access.
Mill Hall
Lower creek 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
Other Rivers You Might Like
Popular forecasts outside Pennsylvania—great for trip planning and comparing conditions.
Other Pennsylvania Trout Rivers
Delaware (below Hancock)
Spring
Youghiogheny
Allegheny
Penns Creek
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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