MTB Project Logo

A fast-paced, flowy trail that both beginners and more experienced riders can enjoy.

Your Rating: Rating Rating Rating Rating Rating      Clear Rating
Your Difficulty:
Your Favorites: Add To-Do · Your List
Zoom in to see details
Map Key







512' 156 m


446' 136 m


444' 135 m


443' 135 m



Avg Grade (1°)


Max Grade (7°)

Dogs Unknown

E-Bikes Unknown


One of the more popular trails in the Nashville area, Lock 4 is approximately 9 miles of well-maintained singletrack. Though there is not a significant elevation change, the trail uses natural features and the provided terrain to make it really fun. The trail is divided into segments, plus several off-shoots intended for more advanced riders.

Need to Know

Parking is at a dedicated mountain bike trailhead. Though continuous, the trail is divided into and east and west side. The west side is lower and closer to the lake, and stays wet more in the winter. The west side is usually closed until the spring.


The trail is divided into 3 loops, all of which connect to make a continuous 9 miles of singletrack. Within each section, the trail is subdivided into BLTs that help with navigation. The trail starts with the South Side Trail (Orange), rated at an intermediate level. This is the largest segment of trail at 5.7 miles. It includes BLT 1, followed by BLT 4 through 12. The trail is overall characterized by sections of rocks and roots with a couple quick climbs and two or three nice downhill runs. Within this section are three "advanced" offshoots: Rolling Table, Rock Garden and Smack Down.

Rolling Table is the dirt built jump line. Though short, the lines are well-planned and are a lot of fun to run and repeat. There are additions to these lines periodically made by the maintainers of the trail. Rock Garden is a stretch that involves a fun rock ledge drop, probably ~3 feet high followed by a gradual but technical climb. Smack Down is a quick offshoot of the trail that drops you down near the lakeside via a rock ledge drop that can be ridden around followed by a tricky switchback climb to the main trail. The trail ends at a junction near the trailhead where you can either return there or continue on to the green loop.

The West Side Trail (Yellow) connects to the South Side Trail (Orange) by crossing the street (slightly diagonal uphill) from the exit of BLT 1 and reconnects to it by going directly across the street when exiting BLT 3. This loop is slightly less technical overall, but there are sections with rocks and roots to navigate. Overall, this section has some of the best flow at this trail, with easy elevation transitions allowing you to keep your speed up. The yellow loop is also an intermediate level trail and is 1.8 miles long. This loop is on the west side of the trail which does not drain as well, so it is usually closed during winter months.

The East Side Trail (Green) begins and ends at the confluence of trails near the trailhead. It is 2.1 miles long and rated at a beginner level. The green loop itself is pretty flat with minimal technical terrain. To spice things up, there are two of the longer advanced offshoots here, Spring Trail/Shoreline Trail 2 and Chlorine Hollow. Both of these resemble the orange loop terrain; moderate climbs, short quick descents and some technical aspects.


Shared By:

David Weiland

Trail Ratings

  4.3 from 53 votes


  4.3 from 53 votes
5 Star
4 Star
3 Star
2 Star
1 Star
Recommended Route Rankings


in Tennessee


89 Views Last Month
19,203 Since Jan 28, 2015
Intermediate Intermediate



The trail is well-maintained and full of scenic views. There is usually plenty of space to move around and get creative while riding.
Aug 9, 2019 near Gallatin, TN
Lock 4 trail - Some sections hold water after heavy rains, but there are trails that navigate around them, like this one on the right. All in all, this trail drains pretty well.
Aug 9, 2019 near Gallatin, TN
Great for all levels, something for everyone !
Nov 11, 2020 near Gallatin, TN
Showing the complexity of the trail system.
Jul 6, 2013 near Gallatin, TN


Current Trail Conditions

Add Your Check-In


Apr 2, 2024
Daniel Cano
First time here 6.5mi — 0h 54m
Mar 31, 2024
Daniel Cano
Aug 19, 2023
Jared Alderson
35.4mi — 3h 56m
Nov 24, 2022
8mi — 0h 57m
Oct 17, 2022
Ken Freeny
11.7mi — 1h 29m
Oct 15, 2021
Charlie Newman
Aug 3, 2021
Rob Lowman
Nov 1, 2020
Zach Hall
Didn't ride much, hurting from shoveling the tee-boxes. 2.5mi — 0h 45m

Stewarded By


Join the Community

Create your FREE account today!
Already have an account? Login to close this notice.

Get Started