What to expect at Lower Greens Run

Lower Greens Run is a small, cold-water tributary in the Laurel Highlands of southwestern Pennsylvania, roughly 20 miles southeast of Somerset. The stream holds native brook trout and a population of smallmouth bass in its lower sections, making it a destination for anglers who want to avoid crowded limestone spring creeks. The water is clear and moderately fast, with a mix of pocket water and deeper pools that hold fish year-round.

The run is best known among local anglers for its brook trout in the upper reaches and the transition zone where smallmouth begin to dominate. Access is limited but straightforward — the stream runs through a mix of public land and private property, and several pull-offs along the road provide entry points. The stream is small enough that you can cover productive water in a half-day, but deep enough in places to reward patience and careful presentation.

Key Takeaways

  • Lower Greens Run holds native brook trout in its upper sections and smallmouth bass in the lower half, with the best fishing from April through October.
  • The stream is open year-round to trout fishing under Pennsylvania's general trout season rules, with a two-fish daily limit on brook trout.
  • Access points exist along the road in several places, but most productive water requires walking upstream from the parking areas.
  • Fly fishing with small nymphs and dry flies works well for trout; spinning with small crankbaits and soft plastics takes smallmouth consistently.
  • The stream is narrow and brushy in places, so shorter rods and careful casting are more effective than distance.

Seasons and water conditions

Lower Greens Run is coldest from December through February, when ice forms in slower sections and water temperatures drop below 40 degrees Fahrenheit. Trout fishing is legal year-round, but winter conditions make access difficult and fish are sluggish. Spring (April and May) brings runoff and higher water levels, but also active feeding as water warms into the 50s.

Summer (June through August) is the most popular season. Water temperatures typically stay in the low to mid-60s Fahrenheit because of the stream's spring-fed nature and tree cover. This is when smallmouth are most active in the lower sections, and brook trout remain catchable in deeper pools and shaded runs. Fall (September and October) offers excellent conditions — cooler water, lower flows, and active fish preparing for winter.

The stream can rise quickly after heavy rain because of its small drainage area. Check water levels before you go; the stream is fishable at moderate flows but becomes murky and difficult after more than an inch of rain in 24 hours.

Trout fishing in the upper sections

The upper reaches of Lower Greens Run, above the first major road crossing, hold native brook trout in the 6- to 10-inch range, with occasional fish to 12 inches. These are wild fish, not stocked, so they are selective and require careful approach. The water is shallow and clear, which means fish spook easily if you wade carelessly or cast a shadow across the stream.

Fly fishing is the most effective method. Use a 7- to 8-foot rod in 3- or 4-weight, with a 9-foot leader tapered to 4X or 5X tippet. Small nymphs — size 14 to 18 Hare's Ears, Pheasant Tails, and Caddis Larva patterns — work best in pocket water and behind rocks. Fish the nymphs on a dead drift, letting them tumble naturally through the current. Dry flies work in late morning and evening, especially size 16 to 18 Adams, Elk Hair Caddis, and small Parachute patterns.

Spinning gear also works, particularly small spinners (size 0 or 1) and inline spoons in silver or gold. Cast upstream and let the lure drift and tumble naturally. Avoid heavy lures and fast retrieves — the fish are small and easily spooked by commotion.

Smallmouth bass in the lower sections

Below the second major road crossing, Lower Greens Run widens and deepens, and smallmouth bass become the dominant species. These fish range from 8 to 14 inches, with occasional fish to 16 inches. The water is still clear and cold, so smallmouth here are more active and less sluggish than in warmer, murkier streams.

Spinning tackle is standard for smallmouth on this stream. Use a 6- to 6.5-foot medium-light rod with 6- to 8-pound braided line and a 6-pound fluorocarbon leader. Small crankbaits (1/4 to 3/8 ounce) in shad and crawfish patterns work well in deeper pools. Cast along the banks, around submerged logs, and into the current breaks behind larger rocks. Soft plastics — 3- to 4-inch tubes and crawfish imitations rigged on 1/8-ounce jigheads — are equally effective and allow you to fish slower and feel the bottom.

Fly fishing for smallmouth is also productive. Use a 7- to 8-foot rod in 5- or 6-weight with a sinking tip line. Larger streamers (size 2 to 4) in black, brown, and olive work well. Strip the fly with short, quick pulls to imitate a fleeing baitfish or crawfish.

Access and parking

Lower Greens Run runs roughly parallel to a local road for several miles, and there are three main access points. The uppermost is near the headwaters, where a small pull-off allows you to park and walk downstream. The middle access is at a bridge crossing, with parking on both sides of the road. The lower access is at another bridge, roughly 2 miles downstream, where a larger pull-off accommodates several vehicles.

Most of the stream runs through private property, but anglers have traditional access along the water itself. Stay in the stream channel and do not cross into adjacent fields or woods. The road is lightly traveled, but watch for traffic when crossing to reach the water.

There are no facilities at any access point — no restrooms, no water, no trash cans. Carry out everything you carry in. The nearest town with services is Somerset, about 20 miles northwest.

Regulations and what you need to know

Lower Greens Run is open to trout fishing year-round under Pennsylvania's general trout season. The daily limit on brook trout is two fish, with a 7-inch minimum length. Smallmouth bass have a 12-inch minimum length and a 15-fish daily limit during the regular season (June through December). From January through May, bass fishing is closed.

You must have a valid Pennsylvania fishing license to fish any public water in the state. Licenses are sold online through the Pennsylvania Fish and Boat Commission website and at most sporting goods stores and bait shops. A one-day license costs less than a full-year license if you are visiting from out of state.

The stream is not designated as a special regulation area, so standard tackle rules apply — no restrictions on lure type, no fly-fishing-only sections. However, the stream is small and the fish are wild, so catch-and-release fishing is encouraged to maintain the population.

Getting there and nearby water

Lower Greens Run is located in Somerset County, roughly 20 miles southeast of Somerset along Route 281 and local roads. From the Pennsylvania Turnpike, take the Somerset exit and follow Route 281 south toward Confluence. The stream crosses several local roads in the Laurel Highlands area; a detailed map or GPS coordinates are helpful for finding the access points.

The area has several other small trout streams within 30 minutes' drive, including Shade Creek and Casselman River, both of which offer similar cold-water habitat and wild trout populations. Youghiogheny River, a larger tailwater fishery, is about 45 minutes away and offers different conditions and larger fish.

Frequently Asked Questions

Do I need a special permit to fish Lower Greens Run?

No. You need only a valid Pennsylvania fishing license, which you can purchase online or at a sporting goods store. There are no special permits or access fees for this stream.

What is the best time of year to fish here?

April through October offers the most consistent fishing and the best weather. Spring (April and May) is excellent for trout; summer and fall are best for both trout and smallmouth. Winter is legal but difficult due to cold water and ice.

Can I fish with live bait?

Yes. Pennsylvania allows live bait for trout and bass. Small minnows and crawfish work well, though artificial lures are often more effective in this clear, cold water.

Is this stream stocked with trout?

Lower Greens Run is not a stocked stream — the trout population is wild and native. This means fewer fish overall, but they are selective and more rewarding to catch on fly or light spinning tackle.

How crowded does this stream get?

Lower Greens Run sees far fewer anglers than popular limestone spring creeks in central Pennsylvania. You may encounter other fishers on weekends, but weekday fishing is often solitary. The small size means you can cover productive water quickly and move on if you encounter other people.