What you need to know

Parking
Difficulty

Difficult, Difficult to find

Point of Interest

Difficulty: Difficult
Distance: 3 miles total
Entry Fee: Free (Donation Box Available)

Grotto Falls is located in Green Mountain Nature Preserve and is located on Green Mountain in Huntsville, AL. The Land Trust of North Alabama owns the land. The trailhead parking lot is right past the Madison County Nature Trail (assuming you are coming from Huntsville and not Owens Cross Roads).

GPS Coordinates: 34.5897720, -86.5172780

Buy Land Trust Maps here

Grotto Falls 1.5 mile each way (3 mile return) scenic hike to a small waterfall that disappears into a cave.  Part of this trail is well-marked but most of this trail is difficult to follow. 

Google Maps Alum Hollow Trail or look at our map above!

Trail

This is not an easy trail to follow. On the interactive map above, I’ve marked the path to the waterfall in Yellow. The hike starts on Alum Hallow Trail. Early on the trail, there is an option to take a left onto Talus Trail. There are signs warning that the trail is very difficult. You will follow Talus Trail all the way to the end. At the end of Talus Trail, Talus Trail Connector is off to the right and is well marked. THIS IS NOT the trail you are taking. You will look into the woods to the LEFT and there are ribbons on a trial with no signs. I’ve heard this called Talus Trail Extended and it is NOT on the Land Trust Hiking Map. Follow these ribbons through the woods and down the mountain. You’ll continue to follow the trail and will eventually follow a valley back uphill (pictured are the cliff face you’ll be passing). 

Grotto Falls

The valley will fork into a valley on the left and right. You’ll follow it up to the right to the waterfall.

This waterfall is NOT easy to find. I suggest plugging in the coordinates of the waterfall into your GPS to help assist in finding it.

GPS Coordinates: 34.5897720, -86.5172780

Leave the same way you hiked in.

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