Skip to main content
Union Dam Trail route map
Difficulty: EasyOut and Back

Union Dam Trail

Ellicott City, Maryland

1.0 mi

Distance

276 ft

Elev. Gain

27m

Est. Time

Out & Back

Route Type

Easy

Difficulty

About This Trail

We don't publish a description for Union Dam 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:61 ft
Max:127 ft
Gain:84 ft
Loss:84 ft
Elevation profileA line rising and falling between 61 ft and 127 ft across 1.0 mi along the route, drawn from start to end.61 ft83 ft105 ft127 ft0.0 mi0.2 mi0.5 mi0.7 mi1.0 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi125 ft
High point0.0 mi127 ft
End1.0 mi125 ft

Trail Details

Route Type
Out & Back

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:
Woodlawn, 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

Be the first to share your experience and help others plan their visit.

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.

Spot an error in our data on Union Dam Trail?