🌤 Weather at R. B. Winter State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 28–75 °F | 58–85 °F | 33–76 °F | 21–41 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Laurelton Ctr, 6 mi away, elevation 800 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
A Spring-Fed Mountain Lake in the Heart of Pennsylvania’s Bald Eagle State Forest
R.B. Winter State Park is a 695-acre gem nestled in a shallow basin surrounded by rocky ridges in Union County, Pennsylvania — deep within the Bald Eagle State Forest. The park’s centerpiece is Halfway Lake, a 7-acre mountain lake fed by cold spring water and contained by a hand-laid native sandstone dam built by the Civilian Conservation Corps in the 1930s. The CCC dam alone is worth the visit — a beautiful piece of Depression-era stonecraft that’s still holding water nearly a century later.
The spring-fed water makes Halfway Lake a productive coldwater trout fishery — regularly stocked with brook, brown, and rainbow trout. A swimming beach provides lake access in summer, and the park’s trails connect to the broader Bald Eagle State Forest trail system, including a segment of the Mid State Trail — Pennsylvania’s premier long-distance hiking route. In winter, the park transforms into a cross-country skiing and snowshoeing destination. It’s small, unassuming, and exactly the kind of place that rewards a return visit in every season.
Things to Do
Swimming
Halfway Lake has a designated swimming beach — a refreshing option given the spring-fed water temperatures (notably cool even in summer). No lifeguards are provided; swim at your own risk.
Trout Fishing
Halfway Lake is a coldwater fishery regularly stocked with:
- Brook trout
- Brown trout
- Rainbow trout
Fishing is also productive in the lake’s tributaries, particularly Rapid Run. Pennsylvania fishing license required.
Hiking
The park’s own trails circle the lake and explore the surrounding ridges. More significantly, the park connects to the Bald Eagle State Forest trail network, including the Mid State Trail — a 333-mile long-distance route traversing central Pennsylvania. Day hikers can access forest trails directly from the park.
Winter Sports
The park remains open year-round and is a popular destination for:
- Cross-country skiing
- Snowshoeing
- Snowmobiling
- Ice skating (when lake conditions permit)
Trails
| Trail | Distance | Difficulty | Highlights |
|---|---|---|---|
| Halfway Lake Loop | ~1 mi | Easy | Lakeshore circuit; CCC dam views; trout fishing access; scenic |
| Mid State Trail (segment) | Multi-mile | Moderate–Strenuous | Long-distance trail; ridge-top views; deep forest; connects to 333-mi route |
| Rapid Run Trail | Varies | Moderate | Stream-side hiking; trout habitat; forest immersion |
Camping
| Type | Sites | Amenities |
|---|---|---|
| Modern Campsites | Multiple loops | Many with electric hookups; restrooms with showers; dump station; fire rings |
| Cottages/Cabins | Available | Furnished; seasonal availability; reservations through PA DCNR |
Best Time to Visit
| Season | Highlights | Considerations |
|---|---|---|
| Spring (Apr–May) | ⭐ Trout stocking; wildflowers; waterfalls in Rapid Run; warming trails | Cool water for swimming; muddy trails; variable weather |
| Summer (Jun–Aug) | Swimming beach; full camping; warm hiking; fishing; family recreation | Popular weekends; spring-fed water stays cool; reserve campsites early |
| Fall (Sep–Nov) | ⭐ Ridge foliage; peaceful hiking; trout fishing; CCC dam photography | Swimming season ending; shorter days; bring layers |
| Winter (Dec–Mar) | Cross-country skiing; snowshoeing; ice skating; winter solitude; cabin stays | Cold mountain temps; check road conditions; some facilities limited |
Visitor Tips
- CCC dam: Take time to examine the hand-laid sandstone dam — each stone was quarried locally and fitted by CCC workers in the 1930s. It’s a masterpiece of Depression-era construction and the most photogenic feature of the park.
- Spring-fed water: The lake water is notably cold year-round. Even in July, it’s refreshing (some would say bracing). Wetsuits are not necessary but a quick dip is definitely a cold-water experience.
- Mid State Trail access: For serious hikers, R.B. Winter provides a gateway to the Mid State Trail — Pennsylvania’s longest hiking trail at 333 miles. Plan day hikes or use the park as a base camp for multi-day sections.
- Bald Eagle State Forest: The surrounding state forest offers hundreds of thousands of acres of additional hiking, hunting, and dispersed recreation — far beyond what the park itself provides.
- Location: The park is about 18 miles west of Lewisburg along Route 192 — a scenic drive through the ridge-and-valley landscape of central Pennsylvania.
Frequently Asked Questions
Wildlife & Nature
R.B. Winter SP — in Bald Eagle SF — centers on Halfway Lake (6 acres) in a mountain valley. The park has the Snyder-Middleswarth Natural Area, containing some of the oldest virgin hemlocks in PA (over 500 years old). Black bears, bobcats, and timber rattlesnakes inhabit the forest. Brook trout fill the streams.
Nearby Attractions
Mifflinburg — 10 miles south. Lewisburg — 15 miles south — has Bucknell University. Bald Eagle SF — surrounding. Penn’s Cave — 20 miles west.
Can you swim at R.B. Winter State Park?
Yes — Halfway Lake has a designated swimming beach. The water is spring-fed and notably cold, even during summer months. No lifeguards are provided, so swimming is at your own risk. The beach area is the primary swimming location; swimming is not permitted near the dam.
What kind of fish are in Halfway Lake?
Halfway Lake is a coldwater trout fishery regularly stocked with brook trout, brown trout, and rainbow trout by the Pennsylvania Fish and Boat Commission. The lake’s spring-fed water maintains cold temperatures year-round, creating ideal trout habitat. Rapid Run, a tributary of the lake, also offers productive stream trout fishing. A Pennsylvania fishing license is required.
Last updated: April 2026
Make it a road trip: Pair a visit with Halfway State Park (a short drive away) or McCalls Dam State Park (a short drive away).
🐾 Dogs & Pets at R. B. Winter State Park
- Pets allowed? statewide rule
- Pets are allowed in day-use areas of Pennsylvania state parks and in designated campground sites, but must be physically controlled, attended at all times and leashed, caged or crated.
- Leash rule statewide rule
- Leash required at all times; no universal maximum length — inquire at the park office (electronic fences/shock collars not accepted as control)
- Beaches & swim areas statewide rule
- Pets are prohibited in swimming areas and designated beaches
- Cabins & lodging statewide rule
- Dogs allowed in a limited number of designated cabins, cottages and yurts (pilot program); maximum two dogs per unit; dogs must be house-trained and current on rabies vaccination
- Pet fees statewide rule
- No standard statewide pet fee; fees may be assessed for damage in dog-friendly lodging
- Statewide exceptions statewide rule
- Maximum two non-caged pets per campsite; pets prohibited in buildings; pet food may not be left outside camping units
Are dogs allowed at R. B. Winter State Park?
Pets are allowed in day-use areas of Pennsylvania state parks and in designated campground sites, but must be physically controlled, attended at all times and leashed, caged or crated. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via pa.gov. More: Pennsylvania state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for R. B. Winter State Park
From our editorial guides, matched to this park’s activities:
