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Rainbow Lake, Signal Mountain
GuideTrail

RAINBOW LAKE

Signal Mountain

A 2.3-mile loop on Signal Mountain to a 1916 dam, a waterfall and the swimming hole below it.

Dog-friendlyWater

Distance
2.3mi
Shape
Loop
Effort
Easy

Rainbow Lake is a short loop off Ohio Avenue on Signal Mountain that gets you to a 1916 dam, a waterfall, and the pool below it that everyone calls the Blue Hole. Two interlocking loops joined by bridges over Middle Creek make 2.3 miles, and you can run it before work.

The path starts as gravel and turns into rocky single-track quickly. The descents into the valley are steep enough that this is a bad first trail run in the dark.

This is Town of Signal Mountain land, so the Park Service swimming ban that covers Signal Point does not apply here. There is no posted rule either way. People swim in it and the town promotes it. Worth knowing before you get in: the Cumberland Trail Conservancy has recorded E. coli in Middle Creek.

Some of the connector trails cross private land, and access can be withdrawn. Stay on the mapped routes rather than linking things together on a whim.

Good to know

Parking
Small free lot off Ohio Ave near Alexian Village — fills on weekends
Surface
Gravel path giving way to rocky single-track
Best time
Summer for the swimming hole; the falls run best after rain
Fee
Free
Contour map showing Rainbow Lake in relation to downtown Chattanooga
Where it is
35.1248° N · 85.3617° W

Trail data © OpenStreetMap contributors

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