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Avalon Loop Trail route map
Difficulty: ExpertLoop
Patapsco Valley State Park/Maryland

Avalon Loop Trail

Baltimore, Maryland

20.0 mi

Distance

3,957 ft

Elev. Gain

7h 48m

Est. Time

Loop

Route Type

Expert

Difficulty

About This Trail

We don't publish a description for Avalon Loop Trail unless we can point you at the agency it came from. We don't have one yet. The planning figures above — distance, elevation gain, estimated time, route type — come from the source listed on this trail.

Maryland Department of Natural Resources, Maryland Park Service manages this trail and is the authority for conditions, closures and route notes. See official sources below. Spot something we should add?

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:11 ft
Max:130 ft
Gain:1,206 ft
Loss:1,206 ft
Elevation profileA line rising and falling between 11 ft and 130 ft across 20.0 mi along the route, drawn from start to end.11 ft51 ft90 ft130 ft0.0 mi5.0 mi10.0 mi15.0 mi20.0 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi20 ft
High point15.0 mi130 ft
End20.0 mi20 ft

Trail Details

Route Type
Loop

Official sources & verification

Managed by Maryland Department of Natural Resources, Maryland Park Service

Verify before you go

Source of truth

Where it is

Nearest town:
Ilchester, MD · in or next to town
County:
Howard County, MD
Jurisdiction:
Patapsco Valley State Park · Maryland Department of Natural Resources, Maryland Park Service

Nearest town and county from U.S. Census Bureau place records and county boundaries.

Verify by phone or mail

  • Operator:(410) 461-5005
  • Address:8020 Baltimore National Pike, Ellicott City, MD 21043 · MD
We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Nearby Trails

More trails near Avalon Loop Trail
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Avalon & Orange Grove Loop

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Three Sisters to Valley View Trail Loop

Three Sisters to Valley View Trail Loop

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Ridge Rockburn and Hop the Snake Trails Loop

Ridge Rockburn and Hop the Snake Trails Loop

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Ridge and Morning Choice Trail Loop

Ridge and Morning Choice Trail Loop

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TrailDifficulty: Moderate
Rockburn Branch Trail Loop

Rockburn Branch Trail Loop

2.4 mi
TrailDifficulty: Moderate

In this park

Other trails in Patapsco Valley State Park

View Patapsco Valley State Park
Cascade Falls Loop Trail

Cascade Falls Loop Trail

Maryland

2.1 mi302 ftgain
TrailDifficulty: Moderate
McKeldin Switchback Trail

McKeldin Switchback Trail

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4.0 mi676 ftgain
TrailDifficulty: Moderate
Chevrolet Trail Loop

Chevrolet Trail Loop

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5.9 mi853 ftgain
TrailDifficulty: Moderate
Mckeldin Rapids Trail

Mckeldin Rapids Trail

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16.3 mi2,733 ftgain
TrailDifficulty: Expert
Old Ranger Trail to Hollofield Access Trail

Old Ranger Trail to Hollofield Access Trail

Maryland

3.5 mi758 ftgain
TrailDifficulty: Moderate
Old Main Line and Daniels Loop Trail

Old Main Line and Daniels Loop Trail

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5.0 mi833 ftgain
TrailDifficulty: Moderate

Stay nearby

Campgrounds near this trail

More campgrounds

Similar length

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Mckeldin Rapids Trail

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Sligo Creek Trail

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Spot an error in our data on Avalon Loop Trail?