Lock 21: Swains Lock
Location: Montgomery County
GPS coordinates: 39.03122,-77.24347
Latest update: November 21, 2025 06:03
Glenstone
3.5 km
Olmsted Island
3.7 km
Great Falls Tavern
3.5 km
Swains Lock
23 m
Glenstone Museum
3.3 km
Edward Beale House
2.6 km
Bedfordshire Park
3.5 km
Lock 19
3.7 km
Kilgour Branch Park
2.9 km
Negro Sunshine
3.1 km
(Serra)
2.8 km
Eldwick Swim and Tennis Club
3.6 km
Potomac River Water Filtration Plant
1.3 km
Compression Line
3 km
Lock 20
3.5 km
Split Rocker
3.3 km
Smug
3.1 km
Contour 290
3.1 km
Riverbend Park Nature Center
1.2 km
Horse and rider
3 km
(Kelly)
2.9 km
(Gober)
3.1 km
(Serra)
2.9 km
(Gonzalez-Torres)
2.9 km
(Goldsworthy)
2.7 km
(Cardiff & Miller)
2.7 km
Great Falls Observation Platform
3.4 km
Scenic viewpoint
2.6 kmReviews
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