Parking
No parking at the segment itself. Reach the western end through the Echo River Springs trail network near Green River Ferry, or join from Sinkhole Trail; follow the park map because junction signs do not name River Valley.
Overview
About River Valley Trail
Why go
- Makes a longer visitor-center trail loop possible.
- Passes a surviving CCC-era stone chlorinator house.
Heads up
- Too short to make a useful stand-alone hike.
- Narrow, overgrown tread and a steep short pitch.
Map & elevation
The route
Loading the Mammoth Cave map
Full mapElevation531–715 ft
Plan your hike
Before you go
Parking
Safety
4 active Mammoth Cave alerts
- ClosureGreen River Ferry temporarily out of serviceMentions Green River Ferry, referenced in this guideThe Green River Ferry has temporarily suspended operations because low water levels make service unsafe. - Ferry service will resume once water levels rise and conditions are safe.Official details
- ClosureAccessible Tour unavailableThe Accessible Tour is currently unavailable because mechanical issues have taken the cave elevator out of service. - Check back for updates or call the visitor center at (270) 758-2180.Official details
The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Mammoth Cave Tour Guide
Your drive to River Valley Trail, narrated.
Parkwolf is a GPS audio tour guide for Mammoth Cave National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this area
Green River Ferry and Echo River Springs0:00 / 0:30
“Up ahead is Green River Ferry, a cable ferry carrying cars, walkers, and cyclists across the river. The crossing began in nineteen thirty-four and still connects nearby communities.”
Plays on the road 0.3 mi from the trailhead in the Parkwolf Mammoth Cave Tour Guide.
More stories near here in the app
- The Lodge and Heritage Trail
- Mammoth Cave Picnic Area and Dixon Cave
- Visitor Center and Historic Entrance
- Mammoth Cave Campground and Caver's Camp Store
- 52 audio storiesacross Mammoth Cave’s roads, triggered by GPS as you drive
- Wildlife heatmapsfor White-tailed Deer, Tricolored Bat, Cave Salamander, and 13 more
- Works offlinemaps, 47 trails, 42 places, and audio download before you lose signal
- CarPlay readysimple controls built for the drive
“Fantastic app with many points of information… It’s great to just turn on while you’re driving and it gives you an audio tour of the national Park. We love it!!!!”
Trail guide
Hiking River Valley Trail
A short connectorRiver Valley is a 0.
River Valley is a 0.3-mile, one-way connector in Mammoth Cave's visitor-center trail network, linking the Echo River Springs side with Sinkhole Trail. The segment takes about 10 minutes and works best as one leg of a longer walk, not as a stand-alone out-and-back. Use the park trail map at the western junction: signs point toward destinations such as Mammoth Dome and the Visitor Center rather than naming River Valley.
Uphill in short burstsWalking east, the trail climbs almost all the way, with three short pitches and brief level…
Walking east, the trail climbs almost all the way, with three short pitches and brief level breaks. The steepest reported pitch is about 15 percent. The dirt tread narrows under overgrowth in places, where vegetation can brush your legs; check for ticks afterward.
The old chlorinator houseNear the western junction, look for the stone Chlorinator House built by the Civilian…
Near the western junction, look for the stone Chlorinator House built by the Civilian Conservation Corps around 1940. It served the park's wastewater-treatment facility, which operated until 1995. The building now sits abandoned in thick brush, close enough to see from the trail network.
Access and dogsThere is no direct parking at this short segment.
There is no direct parking at this short segment. Reach it from the Echo River Springs access near Green River Ferry or join from the Sinkhole Trail side; both approaches use adjoining trails. Leashed pets are allowed on surface trails, with a leash no longer than six feet.
Wildlife
Wildlife in Mammoth Cave
227 sightingsWhite-tailed DeerMost seen around 7 AMSighting map
21 sightingsTricolored BatMost seen around 8 PMSighting map
75 sightingsCave SalamanderMost seen around 6 PMSighting map
149 sightingsWild TurkeyMost seen around 7 AMSighting map
13 sightingsBarred OwlMost seen around 7 PMSighting map
40 sightingsSnapping TurtleMost seen around 11 AMSighting mapSighting maps show where each species has been reported across Mammoth Cave. Wildlife moves, so no sighting is guaranteed.
