Green Spring Creek
Fly fishing in Pennsylvania · Advanced · Best seasons: Spring, Summer, Fall
Target Species
Brown Trout
About This Water
Small Cumberland County limestone spring creek. Technical fishing for selective trout.
Fishing Recommendations
Green Spring Creek is one of the hidden gems of the Cumberland Valley in South Central Pennsylvania. While it often plays second fiddle to its more famous neighbors—the Letort Spring Run and Big Spring Creek—Green Spring offers a classic, technical limestone experience that rewards patience, stealth, and precise presentation.
🎣 Location Overview
Located near Newville, PA, Green Spring Creek is a quintessential limestone spring creek. It is characterized by its constant 50–55°F water temperatures, crystal-clear clarity, and lush beds of elodea and watercress.
What makes this creek special is its intimacy. It is a narrow, meandering stream that flows through pastoral meadows and woodlots. Because it is spring-fed, it remains fishable even during the heat of summer or the depths of winter. Anglers love it because it offers a "pure" fly fishing challenge: the fish are wild, the water is glassy, and the margin for error is razor-thin.
🐟 Target Species & Behavior
The primary draw here is the Wild Brown Trout. While the state occasionally stocks certain sections, the "Catch and Release Fly-Fishing Only" section is sustained by a wary population of wild browns.
- Behavior: These fish are highly "educated." They possess exceptional vision due to the water clarity. They spend most of their time tucked along the edges of weed beds or under overhanging banks.
- Feeding: They are opportunistic but selective. Because the stream is rich in calcium, it produces a massive biomass of crustaceans (Scuds and Sowbugs). When a hatch isn't occurring, these fish are looking down, buried in the weeds for high-protein snacks.
📅 Best Times to Fish
- Spring (April – June): This is prime time. Water levels are stable, and the major hatches (Sulphurs and Blue-Winged Olives) begin.
- Summer (July – September): The Trico hatch is the main event. It requires early starts (6:00 AM) to catch the spinner fall. This is also peak terrestrial season.
- Fall (October – November): As the wild browns prepare for the spawn, they become more aggressive. This is the best time to move a larger fish with a streamer.
- Time of Day: Low-light conditions are your best friend. Early morning and the "magic hour" before dusk are when the largest fish lose some of their caution.
🪰 Recommended Flies & Techniques
Success on Green Spring requires downsizing your gear and maximizing your stealth.
Top Fly Patterns
- Nymphs/Crustaceans:
- Cressbugs & Scuds: (Size 14-18) in gray, olive, or tan. These are the "bread and butter."
- Zebra Midges: (Size 20-24) in black or silver.
- Pheasant Tail: (Size 18-22) unweighted for wary fish.
- Dry Flies:
- Tricos: (Size 22-26) Female duns and male spinners.
- Sulphurs: (Size 16-18) for May/June evenings.
- Terrestrials: Black foam ants, beetles, and Dave’s Hoppers (Size 14-20).
- Streamers:
- Black or Olive Wooly Buggers: (Size 10-12) worked slowly along deep undercut banks.
Techniques & Presentation
- The "Spot and Stalk": Do not blind cast. Walk slowly, stay back from the bank, and look for "dark shapes" or the flash of a flank in the weed windows.
- Long Leaders: Use 12-foot to 15-foot leaders tapering down to 6X or 7X fluorocarbon tippet.
- Micro-Nymphing: Use a tiny piece of yarn or wool as an indicator. Heavy plastic indicators will spook fish when they land on the glassy surface.
💡 Pro Tips & Local Knowledge
- The "Weed Window" Strategy: On Green Spring, the trout sit in the small patches of gravel between the swaying weed beds. You must time your drift so your nymph drops into that specific "window" and stays there for 2-3 seconds before snagging the next weed bed.
- Mind Your Shadow: Because the banks are often meadow-like, your silhouette against the sky is a neon sign to trout. Stay low—crawling on your knees is often necessary.
- The Downstream Drift: For dry flies, try positioning yourself upstream of the fish and drifting the fly down to them. This ensures the fish sees the fly before the leader or line.
- Focus Area: The Catch and Release Fly-Fishing Only section (located off Green Spring Road) is the most productive and beautiful stretch of the creek.
⚠️ Important Information
- Regulations: Ensure you are fishing in the designated Catch and Release Fly-Fishing Only area if you want the best wild trout experience. Conventional gear and bait are strictly prohibited here.
- Access: Much of the land surrounding Green Spring Creek is private. Always respect "Posted" signs. There are several designated parking pull-offs provided by the Pennsylvania Fish and Boat Commission (PFBC).
- Permits: A valid Pennsylvania Fishing License and a Trout/Salmon Permit are required for all anglers 16 and older.
- Wading: Wading is generally permitted, but try to stay out of the water as much as possible. The creek is small enough to fish from the bank, and wading often kicks up silt and alerts fish downstream.
Guide’s Final Word: Green Spring is a "thinking man’s" creek. You might only catch two fish in an afternoon, but they will be hard-earned, beautiful wild browns that you'll remember longer than twenty stockies from a larger river. Stay low, fish fine, and watch the water.
Bug Hatches & Matching Flies
| Hatch | Type | Peak months | Time of day | Hook sizes | Matching flies |
|---|---|---|---|---|---|
| Blue-Winged Olive (BWO) Baetis spp. | mayfly | April, May, September, October | Afternoon | #18-22 | BWO Parachute #18-22, Pheasant Tail #18-20, RS2 #20-22 |
| Sulphur Ephemerella invaria / dorothea | mayfly | May, June | Evening | #14-18 | Sulphur Parachute #14-16, Sulphur Snowshoe Emerger #16-18, Sulphur Nymph #14-16 |
| Trico Tricorythodes spp. | mayfly | July, August, September | Morning | #22-26 | Trico Spinner #22-24, Trico Dun #24-26, Zebra Midge (black) #22-24 |
| White Fly Ephoron leukon | mayfly | August | Late Evening | #12-14 | White Wulff #12-14, White Fly Parachute #12-14, White Fly Nymph #12 |
| Tan Caddis Hydropsyche spp. | caddis | May, June | Late Afternoon/Evening | #14-16 | Elk Hair Caddis (Tan) #14-16, LaFontaine's Deep Sparkle Pupa #14-16, Holy Grail Caddis #14-16 |
| Cinnamon Ant Formicidae | terrestrial | July, August, September | All Day | #16-20 | Cinnamon Ant (Fur or Foam) #16-18, Flying Ant #18-20 |
| Little Brown Stonefly Strophopteryx fasciata | stonefly | February, March | Midday | #14-16 | Early Brown Stone #14-16, Hare's Ear #14-16 |
| Midges Chironomidae | midge | January, February, March, December | All Day | #20-26 | Griffith's Gnat #20-24, Zebra Midge (red or silver) #20-24, Mercury Midge #22-26 |