Letort Spring Run Fishing Forecast
Historic limestone spring creek with constant 56F temps - birthplace of terrestrial fly fishing
Open year-round (check section regs)
Heritage Trout Angling designation likely. C&R, artificial only. Open year-round
Today's Fishing Conditions
Good
Updated 7:13 AM
60°F
--
11 PM - 1 AM
Cress Bug
Free forever • No signup required • Hourly updates
Quick Facts
Brown Trout
spring creek
36°F - 45°F
March Fishing Tactics
Primary Targets
Recommended Tactics
Season opens. Early BWO activity begins.
March Hatches
Scud
Crustacean
PRIMARY FOOD SOURCE year-round. Pink, gray, olive scuds. Cressbug patterns.
Sowbug
Crustacean
Year-round sowbug fishing. Gray, brown sowbugs critical.
BWO
Mayfly
Less prolific than other waters. Overcast days.
Midge
Midge
Year-round spring creek midges. Less prolific than western tailwaters.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Midges, Deep nymphs |
| February | 32-40°F | Midges, Small nymphs |
| March(Now) | 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 | 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 |
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.
Access Points & Parking for Letort Spring Run
Bonnybrook Road
Famous spring creek access.
Letort Park
Town park access.
Carlisle
Town access along the creek.
How to Fish Letort Spring Run: Tips & Tactics
The Letort is one of America's most technical spring creeks, demanding perfect presentations for its educated brown trout. This is where terrestrial fishing was pioneered.
Best Times of Day
Terrestrial fishing in summer is legendary - ants, beetles, hoppers. Morning Trico hatches bring selective feeding. Year-round fishing is possible.
Recommended Techniques
Ultra-fine tippets (7X-8X) are often required. Crawl on your knees to approach fish. Perfect drag-free drifts essential.
Water Conditions
Crystal-clear spring water with highly selective trout. Weed beds provide cover. Suburban setting with easy access.
Fly Selection
Terrestrials were developed here - ants, beetles, crickets, hoppers. Trico patterns for morning hatches. Scuds and cress bugs.
Local Knowledge
The Letort is where Vince Marinaro and Charlie Fox pioneered terrestrial fishing. This is hallowed water. Fish are extremely selective.
Local Tips
The Letort is where terrestrial fishing was pioneered. Charlie Fox and Vince Marinaro fished here. This is technical fishing at its finest.
When is the Best Time to Fish Letort Spring Run?
Spring
Tricos and BWOs. Technical fishing.
Summer
Terrestrial season - legendary fishing.
Fall
Brown trout become more active.
Winter
Spring-fed water fishable. Midge patterns.
Recommended Equipment for Letort Spring Run
Rod
7 to 8-foot, 2 to 4-weight for delicate presentations.
Line
Floating line with long, light leaders.
Leader & Tippet
12-15 foot leaders, 6X-8X tippet.
Waders
Breathable waders. Crawl on knees.
Essential Flies
Letort Spring Run Fishing Regulations
Season
Check PA Fish and Boat Commission.
Limits
Catch-and-release in most sections.
Special Regulations
Artificial flies only. Barbless hooks.
Bait Restrictions
Prohibited - artificial flies only.
Notes
The Letort is hallowed spring creek water.
Always verify current regulations with Pennsylvania fish and wildlife agency before fishing. Regulations can change annually.
Fly Shops & Guides Near Letort Spring Run
Local Fly Shops
- Yellow Breeches Outfitters - Boiling Springs
- TCO Fly Shop
- Orvis
Guide Services
- Letort Guides
- Cumberland Valley Anglers
- Central PA Fly Fishing
Optimal Fishing Conditions
Optimal Flow
20 - 50 CFS
Best fishing conditions
Optimal Water Temperature
52° - 62°F
Ideal for active trout
Other Pennsylvania Trout Rivers
Delaware (below Hancock)
Spring
Youghiogheny
Allegheny
Penns Creek
Ready to Fish the Letort Spring Run?
Get real-time forecasts with AI-powered fly recommendations, live water conditions, and hatch predictions.
Get Your Forecast