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© 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

Yellow Poplar Trail

Passes North Frederick Viewpoint
1,110 ft of climbing

7.5 mi out & back · 1,110 ft gain · 1,708 ft high point · Moderate

Via the Headless Hollow Trail (0.6 mi)

MD · OpenStreetMap contributors

About Elevation Highlights Map Camp near here More hikes

About this hike

This out-and-back trail summits High Knob via Headless Hollow Trail, passing North Frederick Viewpoint and Frederick Overlook.

Elevation

1,110 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

10.3 mi from the trailhead
Adirondack Shelters
Campground · MD

More hikes nearby

Ranked the same way, within twenty-five miles.

18 mi from you
Appalachian Trail
- Summits Loudoun Heights
- 1,600 ft of climbing
- Camp 1 mi away
6.0 mi loop · 1,600 ft gain · Very hard
Harpers Ferry National Historical Park · Camp 1 mi away

Out: 290 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

North Frederick ViewpointAlong the way · 2.9 mi in
Frederick OverlookAlong the way · 3.4 mi in
High KnobNearby · 3.4 mi in
Middletown OverlookNearby · 3.4 mi in

Nearby reading

Gambrill State Park

Map

The hike from its start, the approach dashed. 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: 7.5 mi
Shape: Out & back
Gain: 1,110 ft round trip
High point: 1,708 ft
Low point: 1,320 ft
Difficulty: ModerateFrom 7.5 mi and 1,110 ft of climbing
Managed by: OpenStreetMap contributors
State: MD
Camps within 15 mi: 19
Trailhead: 39.4957° N · 77.5004° W

Get directions Open the map

10.3 mi from the trailhead

Camp Round Meadow

Campground · MD

10.4 mi from the trailhead

Camp Round Meadow

Campground · MD

10 mi from you

Hog Rock Loop Trail

Ends at Cunningham Falls
Inside Catoctin Mountain Park
1,406 ft of climbing

6.8 mi loop · 1,406 ft gain · Hard

Catoctin Mountain Park · Camp under a mile away

Cunningham Falls Nature Trail

Ends at Cunningham Falls
Inside Catoctin Mountain Park
Camp under a mile away

1.1 mi loop · 122 ft gain · Easy

Catoctin Mountain Park · Camp under a mile away

8 Mile Loop Trail

Ends at Cunningham Falls
Inside Catoctin Mountain Park
1,991 ft of climbing

9.2 mi loop · 1,991 ft gain · Hard

Catoctin Mountain Park · Camp under a mile away

The Monadnock Trail

Summits Sugarloaf Mountain
Camp 4 mi away

3.3 mi out & back · 876 ft gain · Moderate

MD · Camp 4 mi away

Harpers Ferry Center Sidewalks and Paths

Summits Camp Hill
Camp 1 mi away

4.0 mi out & back · 459 ft gain · Moderate

Harpers Ferry National Historical Park · Camp 1 mi away

More like this

Hikes that read like this one, wherever they are.

Red Maple Trail
- Passes North Frederick Viewpoint
- 1,273 ft of climbing
8.2 mi loop · 1,273 ft gain · Hard
MD · Camp 10 mi away
Black Locust Trail
- Passes High Knob
- 1,507 ft of climbing
8.7 mi loop · 1,505 ft gain · Hard
MD · Camp 10 mi away
Green Ash Trail
- Passes High Knob
- 1,680 ft of climbing
8.0 mi loop · 1,680 ft gain · Hard
MD · Camp 10 mi away
White Oak Trail
- Ends at Frederick Overlook
- 1,710 ft of climbing
7.9 mi loop · 1,710 ft gain · Hard
MD · Camp 10 mi away

Signal

Cell coverage here

VerizonLTE · Good
AT&T5G · Good
T-Mobile5G · Excellent

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Today61°49°Chance Drizzle
Thu66°52°Patchy Fog
Fri67°47°Sunny
Sat59°49°Mostly Sunny
Sun62°52°Mostly Cloudy
Mon62°54°Chance Rain Showers
Tue62°53°Chance Rain Showers

Today: Chance Drizzle then Mostly Cloudy · wind 6 mph SE

National Weather Service · refreshed hourly