BridgeOpen in App
Get this trail on your phone instantly.
more stats
1,739 ft
Distance
22 ft
Climb
-19 ft
Descent
00:02:54
Avg time
2 ft
Altitude change
456 ft
Altitude min
480 ft
Altitude max
456 ft
Altitude start
459 ft
Altitude end
0.1%
Grade
-8.9%
Grade max
8.7%
Grade min
528 ft
Distance climb
942 ft
Distance down
269 ft
Distance flat
00:02:54
Avg time
Lock 4 Flow Details
-
Activities
- Mountain Bike
- E-Bike
-
Riding AreaLock 4 MTB Park
Gallatin, Tennessee -
Difficulty Rating
-
Local Popularity100 in Mountain Biking [+]
- 100 in E-Biking
-
Global Ranking
-
State Ranking
-
Trail TypeSingletrack
-
DirectionOne Direction
-
Dogs AllowedYes
-
eBike AllowedYes up to Class 1
-
Land OwnerCity of Gallatin
No community description for Lock 4 Flow trail has been added yet!
AI Generated Description
Lock 4 Flow is a 1,739 ft popular blue difficulty singletrack trail located near Gallatin Tennessee. It has a boardwalk. This mountain bike primary trail can be used one direction. On average it takes 2 minutes to complete this trail.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 10 rides
- 10 miles average
6 Months
- 149 rides
- 13 miles avg distance
All
- 738 rides
- Last: Sep 26, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Lock 4 Flow Trail Reports
more »
close
3D
Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users activity logs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs to determine the last time a trail was ridden.
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
Contribute Details
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
Trail Popularity ?
Trailforks scans activity logs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more activities = more kinetic energy = warmer colors.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
?
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
![map legend]()
Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
Suggested Layers
Based on selected activity type
Save the current map location and zoom level as your default home location whenever this page is loaded.
Save
Directions to lock-4-flow trailhead
(36.329270, -86.472110)
Photos
4 more »
Videos
no videos have been added for Lock 4 Flow yet, add a video.
Trail Lists
-
Lock 4 - MTB
1 trails
-
Lock 4 MTB
1 trails
Routes with this trail
Lock 4 40 Challenge(2023) Featured
9 miles • 647 ft • 15 • Loop • Race •
Lock 4 is a perfect 10 mile lap, so the goal is to do 4 laps in under five and half hours. Race it or...
Lock4 40 Course(2022) Archived
8 miles • 618 ft • 9 • Loop • Race •
Riders can challenge themselve as a Solo or Relay option to Four 10-mile laps of Scenic Lock 4 Mountain...
Go Nuts Revenge of the Squirrels XC Archived
6 miles • 454 ft • 12 • Race •
Description Saturday, May 20 , 2023 - Revenge of the Squirrels XC - Acorn and Juniors Sunday, May 21, 2023...
Reviews / Comments
No reviews yet, be the first to write a review or ask a question.
Use trail reports to comment on trail conditions.
We hope you've been enjoying Trailforks!
Create a FREE account to view all trail reviews and much more.
Nearby Trails
- Rock Garden 299 ft
- Connector (blt7/blt8) 394 ft
- Connector (blt1/blt5) 650 ft
- Connector (blt4/blt6) 686 ft
- Connector (blt8/blt10) 696 ft
- By todd
Trailforks & contributors - #114250 - 1,882 views
- Follow/Subscribe
- login to download gpx or kml files.
Hit the Trail
Download Trail
Save to wishlist, Garmin & download.
Find Related Routes
Find routes and users activities that include this trail.
You must enter a description before submitting.