Skip to content

Map Activities Discover Guides Trips Saves

A map of everywhere you can sleep outside in the U.S., with the weather and cell signal to match. Built to stay free.

Explore

Map
Hiking
State guides
Discover

Plan

Trip planner
My trips
Saves
Offline downloads

About

Privacy
Data deletion

© 2026 Roaming.Camp · Data from NPS, Recreation.gov, BLM, USFS, NWS, and the FCC.Operating on ceded ancestral land.Photography via Unsplash.

Leave it better than you found it.

Hike

Ferndale Trail

Passes Antietam Lake

5.1 mi out & back · 877 ft gain · 1,023 ft high point · Moderate

PA · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

Ferndale Trail is a 5.1 mile out and back route climbing 877 feet along Antietam Lake near Mount Penn with a viewpoint.

Elevation

877 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

8.6 mi from the trailhead
Blue Marsh Lake (Dry Brooks Day Use Area)
Campground · PA

More hikes nearby

Ranked the same way, within twenty-five miles.

3 mi from you
Purple Loop
- Summits Neversink Mountain
3.0 mi loop · 696 ft gain · Moderate
PA · Camp 9 mi away
2 mi from you

Out: 590 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Antietam LakeAlong the way · 0.0 mi in
Mount PennNearby · 2.3 mi in
ViewpointNearby · 2.3 mi in

Nearby reading

William Penn Memorial Fire Tower
Pennside, Pennsylvania
Antietam Lake
Antietam School District
Lower Alsace Township, Pennsylvania

Map

The route at the trailhead. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Download the trail and feature data.

At a glance

Length: 5.1 mi
Shape: Out & back
Gain: 877 ft round trip
High point: 1,023 ft
Low point: 536 ft
Difficulty: ModerateFrom 5.1 mi and 877 ft of climbing
Managed by: OpenStreetMap contributors
State: PA
Camps within 15 mi: 1
Trailhead: 40.3561° N · 75.8746° W

Get directions Open the map

Green Loop

Summits Neversink Mountain

2.5 mi loop · 486 ft gain · Easy

PA · Camp 9 mi away

Orange Loop

Summits Neversink Mountain

4.1 mi loop · 685 ft gain · Moderate

PA · Camp 9 mi away

Boone Trail

Ends at Hopewell Lake
1,744 ft of climbing

12.1 mi out & back · 1,744 ft gain · Hard

PA

Antietam Section Gravel Walking Path

Ends at Antietam Lake

1.0 mi loop · 174 ft gain · Easy

PA · Camp 9 mi away

Horse-Shoe Trail

Passes Eagle Rock
Inside Appalachian National Scenic Trail
19,098 ft of climbing

142.5 mi one way · 17,564 ft gain · Very hard

Appalachian National Scenic Trail

More like this

Hikes that read like this one, wherever they are.

3 Farms Trail
- Camp under a mile away
4.2 mi out & back · 371 ft gain · Moderate
Antietam National Battlefield · Camp under a mile away
Fife Lake Trail
- Ends at a viewpoint
13.8 mi out & back · 436 ft gain · Moderate
MI
Final Attack Trail
- Ends at Old Dam Waterfall
- Camp 2 mi away
2.6 mi loop · 304 ft gain · Easy
Antietam National Battlefield · Camp 2 mi away
Stage Trail
- Near Bear Rock
- 1,047 ft of climbing
11.7 mi out & back · 1,047 ft gain · Hard
PA

Weather

7-day forecast

Today68°46°Sunny
Tue64°40°Sunny
Wed65°45°Mostly Sunny
Thu69°48°Sunny
Fri74°50°Sunny
Sat70°49°Mostly Sunny
Sun68°52°Partly Sunny

Today: Sunny · wind 5 mph W

National Weather Service · refreshed hourly

Signal

Cell coverage here

VerizonLTE · Excellent
AT&TLTE · Poor
T-Mobile5G · Fair

FCC coverage data · signal varies in remote terrain