Lost Lake – Saw Mill Branch Tunnel loop from Belmont Estate
Lost Lake – Saw Mill Branch Tunnel loop from Belmont Estate
2.9
(26)
27
runners
Lost Lake – Saw Mill Branch Tunnel loop from Belmont Estate
00:40
5.56km
20m
Running
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.
Last updated: April 21, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
8 m
Lost Lake
Highlight • Lake
Tip by
2.31 km
Swinging Bridge and Patapsco Riverbank
Highlight • Bridge
The river is known as the River of History as it played an essential role in Maryland's Industrial …
Tip by
2.79 km
Saw Mill Branch Tunnel
Highlight • Bridge
Tip by
5.56 km
End point
Parking
Way Types & Surfaces
Way Types
5.50 km
< 100 m
Surfaces
3.04 km
2.37 km
< 100 m
< 100 m
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Elevation
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Weather
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Sunday 17 May
31°C
16°C
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.