Lock 4 Park Mountain Bike Trails in Gallatin, Tennessee

Lock 4 Park in Gallatin has approximately nine miles of connected singletrack divided into beginner, intermediate and advanced sections. The dedicated bike trailhead is at 1598 Lock 4 Road, and the trailhead is listed as open daily from dawn to dusk. Riders must wear helmets, stay on open trails and avoid riding when trails are wet. Check the City of Gallatin’s current trail information before leaving.

Lock 4 Park is a local destination for off-road mountain biking, with approximately nine miles of connected singletrack near Old Hickory Lake. The system combines a beginner-rated east-side loop, an intermediate south-side loop and more difficult offshoots for experienced riders. The dedicated bike trailhead is at 1598 Lock 4 Road in Gallatin.

The most important planning rule is simple: do not ride wet trails. The City of Gallatin’s trail map says helmets are required for riders of all ages, bicycles are the only permitted trail users, and riders should use open trails only.

Lock 4 mountain biking at a glance

Detail — What the official information says

Location — 1598 Lock 4 Road, Gallatin, TN 37066

Trail length — Approximately 9 miles of connected singletrack

Trail layout — Three connected loop areas with labeled BLT sections

Beginner option — East side, approximately 2.1 miles

Intermediate option — South side, approximately 5.7 miles

West side — Approximately 1.8 miles; lower and closer to the lake

Advanced riding — Six advanced sections are identified on the City map

Listed access hours — Daily, dawn to dusk at the bike trailhead

Trail fee — No trail-use fee is listed on the City’s mountain-bike and trailhead pages

The City’s broader Lock 4 Park page also lists picnic areas, fishing areas, boat ramps at selected access points, accessible fishing piers and a model-airplane landing strip. Those amenities are part of the larger park and are not all located at the bike trailhead.

How the Lock 4 trail system is organized

Lock 4 is not one straight out-and-back path. The City describes a continuous system divided into three loop areas, with smaller “BLT” sections that help riders follow the route. The official map labels basic loop trails in numerical order and uses colors to distinguish the main difficulty groupings.

East-side loop: the shorter beginner starting point

The east-side trail is identified on the City map as the beginner route and measures approximately 2.1 miles. That makes it an approachable place to begin if you are still learning how to handle roots, rocks, turns and changing trail surfaces.

“Beginner” does not mean a paved family bike path. Lock 4 is a singletrack mountain-bike system, so new riders should still be comfortable controlling a bicycle on uneven ground and should choose a pace that leaves room to stop safely. The City advises riders to plan ahead, know their equipment and ability, control speed according to conditions and yield to other riders.

South-side loop: the main intermediate ride

The south-side trail is the largest primary segment at approximately 5.7 miles and is rated intermediate by the City. The route includes BLT 1 followed by BLT 4 through BLT 12. The City describes the terrain as containing rocks and roots, quick climbs and several downhill sections.

This is the section to consider when you want a longer ride without moving immediately to the system’s most difficult features. It still requires active bike handling, especially where the trail surface becomes technical or the route changes elevation quickly.

West-side loop: check conditions before counting on it

The west side is approximately 1.8 miles and sits lower and closer to the lake. Because of that location, the City says it stays wetter in winter and is usually closed until spring. The trail map also identifies the west-side trail as closed during wet winter months.

That seasonal note matters for trip planning. Do not assume that the full nine-mile system is open every day. Check current City information, observe posted closures and turn around if the surface is muddy or saturated. Riding wet trails can damage the trail and create unsafe conditions for riders.

Advanced sections at Lock 4

The City’s mountain-biking page identifies three advanced offshoots within the south-side area: Rolling Table, Rock Garden and Smack Down. The official map identifies six advanced sections overall and labels the most difficult features in black.

These features are better treated as optional challenges rather than required parts of a first visit. If you are unfamiliar with the park, begin with the main route that matches your ability, read the map before entering an offshoot and do not follow another rider into a feature you have not assessed yourself.

A practical progression is:

1. Start with the beginner-rated east side if you are new to singletrack.
2. Move to the intermediate south side after you are comfortable with rocks, roots and short climbs.
3. Treat the advanced offshoots as separate decisions, not as automatic extensions of the main loop.
4. Skip any section that is wet, closed or beyond your current skill level.

Trail rules and etiquette

The City’s Lock 4 map lists the following rules and operating guidance:

• Helmets are required for riders of all ages.
• Never ride on wet trails.
• Ride only on trails that are open.
• Leave no trace.
• Adjust speed to the trail conditions.
• Yield to other riders.
• Respect wildlife and plants.
• Plan ahead and know your equipment, ability and the area.
• Trails are for bicycle use only.

The map also warns riders to use extreme caution when exiting the trail near a right-of-way. Slow down, look for traffic and avoid treating the trailhead or connecting roads as part of the singletrack.

For families, the helmet rule and the singletrack format are especially important. A child who is comfortable on a paved greenway may still need supervision and a shorter introduction before attempting uneven, narrow trail. The City does not describe Lock 4 as a paved multiuse path, so choose the route based on actual riding ability rather than age alone.

Parking, access and park hours

The dedicated mountain-bike trailhead is listed at 1598 Lock 4 Road, Gallatin, Tennessee 37066. The City’s trailhead listing gives the access hours as Monday through Sunday, dawn to dusk, and lists 615-451-5911 as the contact number.

The City’s separate Lock 4 Park page uses the same main Point address and identifies the park as closed after dark, except for fishing and boat launching after dark. That exception should not be interpreted as permission for mountain biking after dark. The bike-trailhead listing specifically gives dawn-to-dusk access.

Before driving out:

• Open the official City trail information and map.
• Check whether the west-side section or any other trail segment is closed.
• Give yourself enough daylight to finish the ride and return to the trailhead.
• Bring water, a basic repair kit, a charged phone and a helmet.
• If your group plans to picnic, fish or use a boat ramp, verify the access point because Lock 4 has multiple park access areas with different amenities.

The City’s official map is useful for orientation, but its PDF should be treated as a map to review alongside current closure information rather than as a substitute for same-day conditions.

When is the best time to ride?

The most important timing factor at Lock 4 is trail moisture. The lower west side is particularly affected during winter and may remain closed until spring, according to the City.

Spring, fall and dry summer mornings may offer more comfortable riding temperatures, but weather alone does not determine whether a trail is ready. Recent rain, drainage and maintenance conditions can change the answer. If the trail is soft enough to hold tire ruts or your tires are packing with mud, postpone the ride.

Plan around daylight even though fishing and boat launching may continue after dark in parts of the larger park. Mountain-bike access is listed as dawn to dusk.

How Lock 4 fits into a Gallatin outdoor day

Lock 4 works best when you decide what kind of outing you want before arriving. A focused ride can use the dedicated trailhead. A mixed group may prefer to split activities between the mountain-bike trail and the park’s picnic, fishing or boating areas, but those amenities are distributed among separate access points.

If you are visiting Gallatin for the first time, MyGallatin’s [first weekend in Gallatin itinerary](/articles/first-weekend-in-gallatin-itinerary) places Lock 4 alongside downtown, Town Creek Greenway and Triple Creek Park. For broader planning, the [MyGallatin local guides](/guides) collection can help you compare outdoor recreation with dining, downtown and other local activities.

Recommended plan for different riders

New mountain bikers

Start by reviewing the map and choosing the east-side beginner loop. Ride conservatively, keep your helmet on and avoid advanced offshoots until you have a clear understanding of the terrain. If conditions are wet, choose another day rather than trying to find a drier shortcut.

Intermediate riders

The south-side loop provides the longest named primary segment at approximately 5.7 miles. Use the BLT labels to keep track of your position, maintain control through rocky or rooted sections and treat the advanced features as optional.

Families and mixed-ability groups

Lock 4 can work for a group with different interests, but not everyone needs to ride the same route. A stronger rider may choose the intermediate section while others use the beginner loop or enjoy the park’s picnic and lake-access amenities. Confirm the day’s open sections before dividing the group.

Experienced riders

Experienced riders can use the connected system and evaluate the advanced offshoots identified by the City. Even for skilled riders, the official rules still apply: ride open trails, avoid wet conditions, yield, control speed and respect the landscape.

Before you ride Lock 4

Use this short checklist:

1. Confirm the trailhead address: 1598 Lock 4 Road.
2. Review the current City mountain-biking page and trail map.
3. Check for wet-trail or seasonal closures.
4. Choose a loop that matches your ability.
5. Wear a helmet and bring water and repair supplies.
6. Allow enough daylight for the ride and return to the trailhead.
7. Stay on open bicycle trails and yield to other riders.

Lock 4 Park offers a substantial mountain-bike trail system in the Gallatin area, but the best ride depends on matching your route to your skill level and the day’s conditions. Start with the official map, respect closures and let the trail be dry before you ride.