I've spent years exploring the waters of Franklin County, Pennsylvania, and I can tell you that this south-central PA gem offers some of the most diverse fishing opportunities in the state. With over 70 lakes, rivers, and fishing spots scattered across the county, we're talking about everything from wild brook trout in mountain streams to trophy bass in warm-water reservoirs.
What really sets Franklin County apart is our unique spring creek system that maintains a constant 52-degree temperature year-round. This means when other anglers are hanging up their rods for winter, we're still pulling beautiful trout from crystal-clear limestone waters. The Pennsylvania Fish and Boat Commission stocks over 50,000 trout annually in Franklin County waters, and local clubs raise an additional 23,000 fish through cooperative nursery programs.
Whether you're after native brook trout in the mountains, smallmouth bass in the Conococheague Creek, or panfish at Letterkenny Reservoir, I'll show you exactly where to go and when to fish these waters for the best success. From the famous Falling Spring near Chambersburg to the hidden gems only locals know about, this guide covers everything you need to make the most of Franklin County's incredible fishing opportunities.
Seasonal Fishing Calendar for Franklin County
Understanding the seasonal patterns in Franklin County can make the difference between a memorable fishing trip and going home empty-handed. Our location in south-central Pennsylvania creates unique opportunities throughout the year, and I've tracked these patterns carefully over many seasons on the water.
Spring (March - May)
Spring kicks off with the mentored youth trout day in late March, followed by the regional opening day on the first Saturday of April. Water temperatures in the Conococheague typically range from 45-55°F during this period. I find the best success using small nymphs and wet flies in sizes 14-18 during early spring, switching to dry flies as mayfly hatches begin in late April.
The Pennsylvania Fish and Boat Commission conducts major stocking operations from mid-March through May, with most waters receiving multiple stockings. Antietam Creek, Back Creek, and the West Branch of Antietam Creek all receive heavy plants of rainbow and brown trout. Local cooperative nurseries release their fish during this period too, adding quality 12-16 inch trout to the mix.
Summer (June - August)
Summer transforms Franklin County fishing completely. While many trout streams warm beyond comfortable levels for salmonids, our spring creeks shine during these months. The Falling Spring Branch maintains that magical 52-degree temperature even on 95-degree days. I regularly catch wild brown trout here throughout July and August when most Pennsylvania trout fishing slows to a crawl.
This is prime time for warmwater species. Letterkenny Reservoir produces excellent largemouth bass fishing, with fish moving to deeper structure during midday heat. Early morning topwater action can be explosive, especially around the weed edges and fallen timber. The Conococheague Creek smallmouth fishing peaks in summer, with tube jigs and small crankbaits producing quality 12-18 inch fish.
Fall (September - November)
Fall fishing in Franklin County rivals spring for productivity. The extended trout season runs through February, and fall stocking begins in early October. Water temperatures drop back into the optimal 50-65°F range, triggering aggressive feeding behavior in both trout and bass.
I've found that streamers work exceptionally well during fall, particularly olive woolly buggers and black ghost patterns in sizes 6-10. Brown trout begin their spawning runs in October, creating opportunities for larger fish that move up from deeper pools. The Conococheague fishes well with small spinners and live bait during this period.
Winter (December - February)
While most Pennsylvania anglers store their gear for winter, Franklin County's spring creeks offer year-round opportunities. The Big Spring near Newville and Falling Spring maintain fishable conditions even when air temperatures drop below freezing. I've caught some of my largest brown trout during winter months when fishing pressure is minimal.
Winter tactics require downsizing presentations and slowing retrieves. Small midges in sizes 20-24 produce during sunny afternoon hatches. For spin fishermen, ultra-light tackle with 2-4 pound test line and tiny Panther Martin spinners or trout magnets work well. Fish the deeper pools and slower current seams where trout conserve energy.
Top Fishing Locations by Water Type
Franklin County's diverse geography creates distinct fishing environments, from limestone spring creeks to mountain freestone streams. Each water type requires different approaches and offers unique species opportunities.
Premier Spring Creek Fishing
Falling Spring Branch (Chambersburg) stands as Franklin County's crown jewel for technical dry fly fishing. This limestone spring creek flows through Falling Spring Park and offers roughly 3 miles of public fishing access. The stream maintains exceptional water quality with pH levels around 7.8 and dissolved oxygen consistently above 9 mg/L. Wild brown trout reproduce naturally here, with fish averaging 10-14 inches and occasional specimens exceeding 20 inches.
Access points include the Falling Spring Avenue bridge and multiple pull-offs along Falling Spring Road. The best fishing occurs during morning sulfur hatches from May through July, and afternoon trico hatches from July through September. I recommend 5X to 7X tippet and drag-free presentations for these educated fish.
Big Spring Creek (Newville) flows for approximately 15 miles through Cumberland Valley, with the lower section in Franklin County offering excellent year-round fishing. The Pennsylvania Fish and Boat Commission designates portions as Heritage Trout Waters, recognizing the stream's wild trout population and historical significance. The constant 52-degree temperature supports a robust population of wild browns and rainbows.
Park at the Big Spring Fish and Game Club (with permission) or access public sections near Newville. The stream averages 40-60 feet wide with consistent depth of 2-4 feet, creating ideal habitat for larger trout. Cress bugs, scuds, and sowbugs form the primary forage base, making small orange and pink scud patterns particularly effective.
Major Rivers and Creeks
Conococheague Creek ranks among Pennsylvania's top smallmouth bass fisheries, flowing 80 miles from its headwaters to the Potomac River. The section from Chambersburg to the Maryland line offers the best fishing, with good access at Wilson College, Scotland Bridge, and Welsh Run. The creek also supports a decent population of stocked and holdover trout in the upper reaches.
During spring and fall, the Pennsylvania Fish and Boat Commission stocks the creek heavily with trout from Chambersburg upstream. Summer months shift focus to smallmouth bass, rock bass, and channel catfish. I've had excellent success using tube jigs in green pumpkin and smoke colors for smallies, while nightcrawlers and minnows produce channel cats up to 8 pounds.
Antietam Creek provides 20 miles of fishable water in Franklin County, with the section from Waynesboro downstream receiving the heaviest stocking. The creek flows through agricultural land, creating nutrient-rich water that grows trout quickly. Access points include Pen Mar Park, Red Run Park, and numerous bridge crossings along Antietam Road.
The creek fishes best from April through June and again from October through December. Small spinners like Rooster Tails and Mepps work well in the faster riffles, while PowerBait and corn produce in deeper pools. The delayed harvest section near Waynesboro offers catch-and-release fishing from October 1 through June 14, with excellent opportunities for larger holdover trout.
Lakes and Reservoirs
Letterkenny Reservoir covers 17 acres within Letterkenny Army Depot, offering some of Franklin County's best warmwater fishing. The reservoir supports healthy populations of largemouth bass, crappie, bluegill, and channel catfish. Military ID or approved access is required, but the limited pressure results in quality fishing.
The reservoir features extensive shallow weed beds perfect for spring spawning activity. I've caught numerous 3-5 pound largemouth bass using Texas-rigged plastic worms around the weed edges. The dam area produces good crappie fishing with small jigs suspended under bobbers at 4-6 feet. Ice fishing is permitted when conditions allow, with bluegill and crappie providing steady action.
Opossum Lake offers 34 acres of mixed warmwater and trout fishing opportunities near St. Thomas. The Pennsylvania Fish and Boat Commission stocks the lake with trout in spring and fall, while naturally reproducing populations of bass and panfish provide year-round action. The lake features a concrete boat ramp suitable for small boats and kayaks.
Structure fishing around the standing timber produces the best bass results, with spinnerbaits and chatterbaits covering water efficiently. The deeper sections near the dam hold suspended crappie during summer months. For stocked trout, I recommend fishing the inlet area during spring with small spoons or floating PowerBait rigs.
Wild Trout Waters and Native Brook Trout Streams
Franklin County harbors several Class A wild trout streams that receive no stocking, relying entirely on natural reproduction. These waters require more skill but reward anglers with pristine settings and wild fish.
East Branch Antietam Creek above Waynesboro Reservoir supports a population of native brook trout in its headwaters. The stream flows through Michaux State Forest, providing a true wilderness fishing experience. Access requires hiking from Old Forge Road or Rattlesnake Run Road. These wild brookies rarely exceed 8 inches but eagerly take small dry flies and terrestrials.
West Branch Little Cove Creek in the western part of the county offers another native brook trout opportunity. The stream tumbles through mountain terrain, creating plunge pools and pocket water perfect for dapping dry flies. A size 14 Adams or Royal Wulff works year-round on these opportunistic fish.
When fishing for wild trout, I practice strict catch-and-release using barbless hooks. These fragile populations can't sustain harvest pressure, and maintaining their genetics ensures future generations can enjoy truly wild Pennsylvania trout. Water temperatures above 68°F stress these fish severely, so I avoid fishing during hot summer afternoons.
Expert Tips from Local Fishing Guides
Professional guides offer invaluable local knowledge that can dramatically improve your Franklin County fishing success. I've compiled insights from several respected local guides who know these waters intimately.
George Hammond, who guides on the Falling Spring and other limestone creeks, emphasizes the importance of stealth and presentation. "These spring creek trout see a lot of pressure," he notes. "Long leaders, 12-15 feet, and accurate casts make all the difference. I tell clients to watch for subtle rises in the surface film – that's where the big browns feed."
For bass fishing on the Conococheague, guide Tom Richards recommends focusing on current breaks and eddies. "Smallmouth position themselves where they can ambush prey without fighting heavy current. Cast upstream and let your lure sweep past these spots naturally. A 1/8 ounce tube jig on 6-pound fluorocarbon is my go-to presentation."
Several guides offer specialized trips focusing on Franklin County's unique fishing techniques including European nymphing for wild trout and float trips for smallmouth bass. Rates typically range from $250-400 for half-day trips and include all necessary equipment. Booking during weekdays often provides better availability and sometimes reduced rates.
Cooperative Nursery Programs and Local Stocking
Franklin County benefits tremendously from cooperative nursery programs where local sportsmen's clubs raise trout for stocking in public waters. The Chambersburg Rod & Gun Club operates one of the state's most successful programs, raising approximately 23,000 trout annually.
These cooperative nurseries receive fingerling trout from the Pennsylvania Fish and Boat Commission and raise them to catchable size, typically 11-14 inches. The clubs purchase feed and maintain the facilities, creating a true partnership between state agencies and local anglers. Fish from these programs often grow larger and healthier than standard hatchery trout due to lower density rearing conditions.
The Fort Loudon Sportsman's Association and Greencastle Sportsman's Association also participate in cooperative nursery programs. Combined, Franklin County clubs stock over 30,000 additional trout beyond the state's regular stocking program. These fish go into waters like the Conococheague Creek, Back Creek, and Conocheague Creek, significantly enhancing fishing opportunities.
Spring stocking typically occurs from mid-March through May, with a schedule published by each club. Many clubs hold children's derbies and special events around stocking dates, creating family-friendly fishing opportunities. I recommend checking club websites or Facebook pages for current stocking schedules and event information.
Fishing Regulations and Licensing Requirements
Pennsylvania fishing regulations apply throughout Franklin County, with specific rules for certain waters. A valid Pennsylvania fishing license is required for anyone 16 years and older, with a separate trout stamp needed for trout fishing.
License costs for 2026 include $22.90 for Pennsylvania residents and $52.90 for non-residents, with the trout stamp adding $9.90. Senior residents (65+) can purchase a lifetime license for $51.90. Licenses are available online through the Pennsylvania Fish and Boat Commission website, at sporting goods stores, or through the FishBoatPA mobile app.
The regular trout season runs from the opening day in early April through Labor Day, with an extended season from the day after Labor Day through February. The Antietam Creek Delayed Harvest Artificial Lures Only section has special regulations: catch-and-release only with artificial lures from October 1 through June 14, then regular harvest rules apply.
General creel limits include 5 trout per day during regular season (combined species), with a 7-inch minimum size. Opening day allows 8 trout. Bass season opens in mid-June with a 15-inch minimum for largemouth and 12-inch minimum for smallmouth, 6 combined daily limit. Panfish have no minimum size with a 50 combined daily limit.
Several waters have special regulations worth noting. Big Spring Creek's Heritage Trout Water section operates under wild trout regulations: 2 trout daily limit, 14-inch minimum. The Falling Spring has sections designated as Selective Harvest with artificial lures only and specific slot limits. Always check current regulations before fishing, as rules can change annually.
Access Points and Parking Information
Finding legal access and parking can challenge anglers unfamiliar with Franklin County waters. I've mapped out the primary access points for major fishing locations to help you plan your trips efficiently.
For Conococheague Creek, public access exists at Scotland Bridge (GPS: 39.9731°N, 77.5897°W) with parking for 10 vehicles. Wilson College in Chambersburg allows fishing with parking near the athletic fields. The Welsh Run Natural Area provides excellent access with a gravel lot holding 15 vehicles and a short trail to the creek.
Antietam Creek access includes Red Run Park in Waynesboro with ample parking and easy stream access. The Old Forge Road bridge crossing offers roadside parking for 3-4 vehicles. Pen Mar Park provides family-friendly access with restrooms and picnic facilities.
Falling Spring access starts at Falling Spring Avenue in Chambersburg, with street parking available. The Quarry Road section has limited roadside parking for 2-3 vehicles. Always respect private property and park only in designated areas. Many productive sections flow through private land where landowner permission is required.
Mountain streams in Michaux State Forest allow roadside parking at most stream crossings. Look for wider shoulders or small pull-offs. During deer season (late November through December), wear bright orange for safety and expect increased traffic on forest roads.
Recommended Tackle and Equipment
Success in Franklin County's diverse waters requires versatile tackle selection. For our trout fishing tips, I recommend a 5-weight fly rod for most situations, though a 3-weight provides more sport on small mountain streams. Spinning gear in ultralight to light action handles most trout fishing needs, with 4-6 pound test line standard.
Essential trout lures include Rooster Tail spinners in white, yellow, and brown (sizes 1/16 to 1/8 ounce), Panther Martin spinners in gold and silver, and trout magnets in pink, white, and chartreuse. For bait fishing, PowerBait in chartreuse and rainbow colors produces consistently, along with live worms and salmon eggs.
Bass fishing requires medium action spinning or baitcasting gear with 8-12 pound test line. My smallmouth arsenal includes tube jigs in natural colors, small crankbaits like Rapala DT-6, and topwater poppers for early morning action. For largemouth in lakes, add plastic worms, spinnerbaits, and larger crankbaits.
Seasonal considerations affect tackle choices significantly. Spring calls for smaller presentations as water runs high and cold. Summer requires early morning or evening fishing with topwater lures. Fall fishing benefits from larger streamers and reaction baits as fish feed aggressively. Winter demands downsized offerings and slow presentations.
Don't forget essential accessories: polarized sunglasses for sight fishing, forceps for hook removal, and a quality landing net. A stream thermometer helps monitor water temperatures, critical for trout survival during catch-and-release. Waders extend your season and access, though wet wading works fine during summer months.
Conservation and Best Practices
Protecting Franklin County's fisheries ensures future generations can enjoy these resources. I follow several conservation principles that every angler should adopt.
Practice selective harvest by keeping only what you'll eat and releasing the rest. Large breeding fish contribute most to population sustainability, so consider releasing trophy specimens. For trout, avoid fishing when water temperatures exceed 68°F, as catch-and-release mortality increases dramatically.
Handle fish properly during release. Wet your hands before touching fish to protect their slime coat. Support the fish horizontally and avoid squeezing. Remove hooks quickly using forceps or pliers, cutting the line if deeply hooked rather than causing additional damage.
Respect private property and fellow anglers. Many productive waters flow through private land where courteous behavior maintains access privileges. Pack out all trash, including fishing line that can entangle wildlife. Give other anglers space, especially on small streams where fish spook easily.
Participate in stream improvement projects through local clubs and the Franklin County Conservation District. These organizations conduct stream bank stabilization, habitat improvement, and water quality monitoring. Your volunteer hours and membership dues directly benefit the waters you fish.
Report violations to the Pennsylvania Fish and Boat Commission's Operation WATERWAYS at 855-FISH-KIL. Poaching and pollution threaten our fisheries more than legal harvest ever could. Your vigilance helps protect these resources.
Planning Your Franklin County Fishing Trip
Whether you're a local angler or visiting from out of state, proper planning enhances your Franklin County fishing experience. I've outlined key considerations for successful trips.
Check current conditions before heading out. The USGS maintains stream gauges on major waters, providing real-time flow and temperature data. Higher flows after rain can improve fishing but make wading dangerous. During drought conditions, focus on spring creeks and deeper pools.
Lodging options range from camping to full-service hotels. Caledonia State Park offers camping with easy access to mountain streams. Chambersburg and Waynesboro provide numerous hotels and restaurants for comfortable base camps. Several bed-and-breakfasts cater specifically to anglers, offering early breakfasts and freezer space.
Local tackle shops provide current fishing reports and specific pattern recommendations. Chambersburg's sporting goods stores stock regional favorites and can suggest productive locations based on current conditions. Building relationships with shop staff yields invaluable local intelligence.
Consider hiring a guide for your first visit or to learn new techniques. Local guides know seasonal patterns, have access to private waters, and provide all necessary equipment. A guided trip jumpstarts your learning curve and often results in more fish caught.
Time your visit strategically. April through June offers excellent trout fishing with comfortable weather. September and October provide great bass action and fall trout stocking. Winter spring creek fishing sees minimal pressure. Avoid opening day and Memorial Day weekend if you prefer solitude.
Frequently Asked Questions
Do I need a trout stamp to fish for bass in Franklin County?
No, the trout stamp is only required when fishing for trout. If you're exclusively targeting bass, catfish, or panfish, you only need the basic Pennsylvania fishing license. However, if you're fishing waters that contain trout, even if targeting other species, you should have a trout stamp to avoid potential violations.
What's the best time of year to fish Conococheague Creek?
The Conococheague fishes well year-round but peaks during different seasons for different species. For trout, April through May and October through November provide the best action following stocking. Smallmouth bass fishing excels from June through September, especially during early morning and evening hours.
Can I fish the spring creeks during winter?
Yes, Franklin County's spring creeks like Falling Spring and Big Spring maintain fishable temperatures year-round due to their constant 52-degree temperature. Winter fishing can be excellent with minimal pressure, though you'll need to adjust tactics with smaller flies and slower presentations.
Are there any waters in Franklin County where I can fish without a license?
Pennsylvania requires a fishing license for anyone 16 years and older on all public waters. However, the Pennsylvania Fish and Boat Commission sponsors two free fishing days annually (usually around Memorial Day and July 4th) when anyone can fish without a license. Some private pay-to-fish operations may not require a state license.
What's the difference between stocked and wild trout in Franklin County?
Stocked trout come from state hatcheries or cooperative nurseries and are released at catchable size (11-14 inches typically). Wild trout reproduce naturally in the stream and tend to be more colorful, stronger fighters, and warier of anglers. Waters like Big Spring and Falling Spring support both stocked and wild fish populations.
How do I identify a delayed harvest area?
Delayed harvest areas are marked with yellow signs indicating special regulations. In Franklin County, the Antietam Creek section near Waynesboro is designated delayed harvest. From October 1 through June 14, it's catch-and-release only with artificial lures. After June 15, regular harvest rules apply.
What size trout can I keep in Franklin County?
Most Franklin County waters follow general Pennsylvania regulations: 7-inch minimum size for trout with a 5-fish daily limit (8 on opening day). However, some waters have special regulations. Big Spring's Heritage Trout Water section requires a 14-inch minimum with a 2-fish limit. Always check current regulations for specific waters.
Are there any trophy bass lakes in Franklin County?
While Franklin County lacks large reservoirs known for trophy bass, Letterkenny Reservoir and Opossum Lake both produce quality largemouth bass. The limited fishing pressure at Letterkenny (due to access restrictions) results in better size structure. For trophy potential, many anglers also explore nearby bass fishing guide waters in adjacent counties.
Conclusion
Franklin County offers remarkable fishing diversity that rivals any region in Pennsylvania. From the technical dry fly fishing on our spring creeks to the aggressive smallmouth bass in the Conococheague, these waters provide year-round opportunities for every skill level and interest.
What truly sets Franklin County apart is the combination of quantity and quality. With over 70 fishing locations, extensive stocking programs supplemented by local cooperative nurseries, and unique features like constant-temperature spring creeks, we enjoy advantages many regions lack. The 52-degree spring creeks alone make Franklin County a destination for serious trout anglers seeking year-round opportunities.
I encourage you to explore beyond the well-known spots mentioned in this guide. Some of my most memorable days have come from discovering small wild trout streams in the mountains or finding overlooked bass water. Take time to chat with local anglers, visit tackle shops, and consider joining a local sportsman's club to truly integrate into Franklin County's fishing community.
Remember that these waters are a shared resource requiring our collective stewardship. Practice conservation, respect private property, follow regulations, and introduce someone new to fishing. The future of Franklin County fishing depends on engaged anglers who value and protect these waters.
Whether you're planning your first visit or you're a longtime resident looking for new water to explore, Franklin County's diverse fisheries offer something special every day of the year. Tight lines, and I'll see you on the water!
