Rainbow Falls hides in a wooded gorge on Signal Mountain, where Middle Creek tumbles over a layered rock bluff surrounded by tall trees, mossy boulders, and sandstone cliffs. Getting there is half the fun: a historic stone dam, a creekside trail, and a 100-foot suspension bridge, all before you reach the rugged Cumberland Trail.
It’s about 25 minutes from Timberroot stays, and one of the most rewarding half-day hikes around Chattanooga. Here’s how to plan it.
Rainbow Falls at a glance
- Location: Signal Mountain, near Chattanooga
- Trailhead: Rainbow Lake Trailhead, 304 Ohio Avenue, Signal Mountain, TN 37377
- Hike: About 2.5 to 3 miles round trip, depending on your route
- Difficulty: Moderate, with steep and rocky sections
- Highlights: Rainbow Lake Dam, Middle Creek, the suspension bridge, and the falls
- Cost: Free, including parking
- Dogs: Allowed on leash
- Best time: Spring, or after moderate rain once conditions are safe
Rainbow Falls vs. Rainbow Lake
These two get mixed up a lot, and knowing the difference helps you pick the right hike for your group.
- Rainbow Lake is a historic reservoir formed by a stone dam built around 1916 for the old Signal Mountain Hotel. It’s easy to reach on established trails and home to the suspension bridge. Great for families and a shorter outing.
- Rainbow Falls is a natural waterfall farther down Middle Creek Gorge, below the Cumberland Trail. It’s a longer, rockier hike, and there’s no maintained trail to its base.
Mixed group? Everyone can hike to the lake and bridge together, then the more adventurous crew can continue toward the falls while the rest head back.
Finding the trailhead and parking
Start at the Rainbow Lake Trailhead on Ohio Avenue, near Alexian Village and the Signal Mountain Golf and Country Club. Enter “Rainbow Lake Trailhead” in your GPS, not “Rainbow Falls,” since the falls themselves aren’t reachable by road.
Get directions to the Rainbow Lake Trailhead.
From Chattanooga, take US-127 up Signal Mountain, continue onto Signal Mountain Boulevard, and follow signs toward Signal Point and Alexian Village. Continue onto Ohio Avenue past Alexian Village and look for the small lot by the golf course.
The free lot is small and fills on nice weekends, especially during fall color. Arrive early, carpool if you’re with a group, and only park in designated spaces. If it’s full, don’t block driveways in the neighborhood.
You can also reach this stretch of the Cumberland Trail from Signal Point, but that route starts with a steep descent into the gorge and ends with a tough climb out. Ohio Avenue is the easier way in.
The hike, step by step
1. Rainbow Lake Trail
The hike starts on a wide gravel path through shady woods beside the golf course. You’ll pass an old stone springhouse and reach a junction about half a mile in. Turn left for the most direct descent toward the dam.
2. Rainbow Lake Dam
When the water is up, Middle Creek spills over the old stone dam in a picture-perfect cascade, framed by big rocks, hemlocks, and mountain laurel. It’s a great place to stop, and it’s a different waterfall from Rainbow Falls.
3. The suspension bridge
Follow the creek to the suspension bridge, about 100 feet long and part of the Cumberland Trail. Below, Middle Creek winds around giant boulders through pockets of deep green water. For a shorter hike, this is a perfect turnaround point.
4. Cumberland Trail toward Rainbow Falls
For the falls, follow the white-blazed Cumberland Trail toward Signal Point. The trail gets noticeably rockier here, with roots, uneven stone steps, and narrow stretches above the gorge. Listen for rushing water. Rainbow Falls sits below the trail, and depending on the season, you’ll catch views of it through the trees.
Stay on the trail. There’s no established route to the base of the falls, and the Cumberland Trail Conservancy advises against following unofficial paths or ropes down. The steep descents are genuinely dangerous.
5. Head back
Retrace your steps to Rainbow Lake and climb back up to Ohio Avenue. Experienced hikers can extend toward Signal Point or Edwards Point, but those routes add distance and steep climbs. Download a trail map before you start, and leave plenty of daylight for the return.
How hard is it?
- Rainbow Lake and the dam: An easy start, then a steeper, rockier descent to the creek.
- Suspension bridge: Moderate, with uneven footing and some elevation change.
- Cumberland Trail toward the falls: Moderate to strenuous in places, with rocky steps, roots, and exposed sections.
- Base of the falls: No maintained access. Don’t attempt it.
Wear sturdy shoes with good traction. Shaded sandstone, wet leaves, and mossy rocks stay slick even in dry weather.
Can you swim?
Some hikers cool off near Rainbow Lake and the suspension bridge in summer, but there’s no swimming area at Rainbow Falls itself, since reaching the base means leaving the trail. Middle Creek’s water quality can change, especially after rain, so check WaterWays for the latest local monitoring before getting in. Never jump into water of unknown depth or swim near the top of a waterfall or dam.
The best time to visit
- Spring: Usually the best mix of waterfall flow, wildflowers, and fresh green.
- Summer: The shaded gorge is a welcome break from the heat, though the falls can thin out in dry spells.
- Fall: Bright hardwoods along Middle Creek, and the busiest time at the trailhead.
- Winter: Bare trees open up views into the gorge, but watch for ice on shaded steps.
Skip it during storms or right after heavy rain. Middle Creek rises fast, and wet rock makes the trail more dangerous.
Fall and spring weekends on Signal Mountain book up early, so lock in your stay first.
Make it a Signal Mountain day
Rainbow Falls sits in the middle of some of Signal Mountain’s best scenery, so it’s easy to build a full day around it. A sample day:
- Morning: Breakfast at your stay, then head up the mountain to grab a spot at the trailhead.
- Late morning: Hike to the dam, the bridge, and on toward the falls.
- Afternoon: Take in the river gorge from Signal Point, or add a quick visit to Falling Water Falls in nearby Walden.
- Evening: Back to your stay to rest sore legs in the hot tub and cook dinner together.
What to bring
- Sturdy hiking shoes with good traction
- Water
- A downloaded trail map (cell service is spotty in the gorge)
- Layers for changing weather
- Bug spray in warmer months
- Snacks for longer hikes
- A bag to carry out trash
For detailed trail info, see Outdoor Chattanooga’s Rainbow Lake guide or the Cumberland Trail Conservancy’s Signal and Edwards Points guide.
Where to stay near Rainbow Falls
Every Timberroot stay in Chattanooga is about 25 to 30 minutes from the trailhead, with downtown and Lookout Mountain close by for the rest of your trip.
Riverview Inn
About 23 minutes to the trailhead. Start with a complimentary hot breakfast, then come back to two hot tubs and a heated seasonal pool overlooking the river. Every king room and suite has a private balcony.
The Valley Collection
About 23 minutes to the trailhead. Whole homes on quiet streets in Lookout Valley, each with a full kitchen and room for your crew to spread out. Select homes welcome dogs, who are welcome on the trail too, on leash.
Wauhatchie Woodlands
About 24 minutes to the trailhead. Tiny cabins and custom homes on 14 wooded acres, most with private hot tubs for tired legs. Groups can book several cabins together or take over one of the homes.
Treetop Hideaways
About 25 to 28 minutes to the trailhead. Five handcrafted treehouses in two locations, one beside Ruby Falls and one in the Chattanooga Valley. A day in the gorge, then a night in the trees.
Quail Run Farm
About 29 minutes to the trailhead. A 120-acre working farm with converted grain silos, cabins, farmhouses, and tiny homes. Hike in the morning, then grill farm-raised beef and watch the sunset over the pasture.
Lookout Mountain Inn
About 31 minutes to the trailhead. Cottages, rooms, and apartments in the woods on Lookout Mountain, with breakfast included. Signal Mountain one day, Rock City and Ruby Falls the next.
Rainbow Falls FAQ
Where do you park for Rainbow Falls?
Park at the Rainbow Lake Trailhead, 304 Ohio Avenue, Signal Mountain. The small free lot gives you access to Rainbow Lake and the Cumberland Trail.
How long is the Rainbow Falls hike?
About 2.5 to 3 miles round trip from the Rainbow Lake Trailhead, depending on your route. That doesn’t include any descent to the base, which isn’t maintained or recommended.
Is Rainbow Falls the same as Rainbow Lake?
No. Rainbow Lake is a historic reservoir and dam near the suspension bridge. Rainbow Falls is a natural waterfall farther down Middle Creek Gorge.
Can you hike to the bottom of Rainbow Falls?
There’s no maintained trail to the base. Unofficial descents are steep and hazardous, and the Cumberland Trail Conservancy recommends staying on the established trail.
Can you see the falls from the suspension bridge?
No. The bridge has great views of Middle Creek and the gorge, but the falls are farther along the Cumberland Trail.
Is the Rainbow Falls hike kid-friendly?
The shorter hike to Rainbow Lake and the bridge can work for families comfortable on uneven trails. The rockier stretch toward the falls may be too much for young kids.
Are dogs allowed?
Yes, on leash.
Is there a fee?
No. The trails and parking are free.
Where should we stay near Rainbow Falls?
Every Timberroot stay in Chattanooga is about 25 to 30 minutes from the trailhead, from whole homes and tiny cabins to treehouses and a working farm.
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