Limestone · Pennsylvania

Letort Spring Run

Letort Spring Run venue image
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Vince Marinaro and Charlie Fox's home water, and the cradle of American terrestrial fishing — a slow, weed-trailing, gin-clear limestoner where the trout see everything and the leader does the work.

Species

About as good as it gets

Low and clear — careful approach country. Take your time — read the water before you cast.

75% confidence in this read
Water temperature for brown trout
Ideal
14°C est.ideal 1016°C
0°14°28°
Why this score · for brown trout
  • Temperature10028% weight
  • Flow8022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Insect activity6812% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
13.9°C
Estimated
Clarity
Clear
Air temp
27°C
Wind
E 13 km/h
Gentle breeze
Pressure
1021 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
0.0 mm
No meaningful rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though time of day could be better.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • PA Heritage Trout Angling C&R, fly-fishing-only on the managed section — verify reach.
Directions
About this water

Vince Marinaro and Charlie Fox's home water, and the cradle of American terrestrial fishing — a slow, weed-trailing, gin-clear limestoner where the trout see everything and the leader does the work. Tiny ants, beetles, the Letort cricket and a careful crawl in summer; sulphurs and a long-rod humility the rest of the year. Nothing in the app fishes less like a mountain freestone than this.

Under the surface

The Letort is where American fly fishing grew up, and it remains its sternest schoolroom. A limestone spring creek rising near Carlisle in the Cumberland Valley, it is small, slow, clear and watercress-choked — the water Vince Marinaro and Charlie Fox studied until they reinvented dry-fly fishing around its impossibly selective wild browns. The lime-rich springs keep it cold and fertile and even-tempered all year; the bed is silt, gravel and rooted cress, the surface a slow mirror that forgives nothing. The trout are few, large, wild and so wary that catching one is a genuine event spoken of afterward. This is terrestrial water — the cricket, the cress bug, the ant — fished fine and far off on the lightest tippet you can bear. Wading is mostly avoided on the soft bottom; you kneel in the grass, watch, and try not to be seen.

Wading: Soft silt bottom, total exposure

  • Limestone
  • Unconfined
  • Spring creek
  • Pool riffle
Seasons & zones
  • Trout1 January → 31 December
Other water nearby · 3