Start - Turtle Bach Trail – 3rd Brigade Downhill Entrance loop from Cobb County Sports Aviation Complex
Start - Turtle Bach Trail – 3rd Brigade Downhill Entrance loop from Cobb County Sports Aviation Complex
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Start - Turtle Bach Trail – 3rd Brigade Downhill Entrance loop from Cobb County Sports Aviation Complex
01:36
19.5km
120m
Mountain biking
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is right next to a parking lot.
Last updated: April 25, 2026
Tips
Includes a segment that may be dangerous
A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.
After 12.8 km for 164 m
Waypoints
Start point
Parking
Get Directions
2.18 km
Start - Turtle Bach Trail
Highlight • Trail
3.90 km
Allatoona Creek Park
Forest
12.9 km
Entrance to 2nd Infantry Jumpline
Highlight • MTB Park
Tip by
14.0 km
3rd Brigade Downhill Entrance
Highlight • MTB Park
Tip by
19.5 km
End point
Parking
Way Types & Surfaces
Way Types
15.6 km
1.51 km
892 m
707 m
658 m
204 m
Surfaces
15.4 km
2.64 km
1.18 km
223 m
< 100 m
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Elevation
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Weather
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Today
Saturday 27 June
32°C
22°C
53 %
Additional weather tips
Max wind speed: 15.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Description
If you're looking for a mountain biking challenge that blends flowy singletrack with a serious downhill kick, the Start - Turtle Bach Trail – 3rd Brigade Downhill Entrance loop from Cobb County Sports Aviation Complex delivers. This difficult 12.1-mile (19.5 km) route packs 384 feet (117 metres) of elevation gain into just 1 hour and 36 minutes, making it a perfect pick for intermediate to advanced riders seeking a dynamic ride in Cobb County.
What to expect on Start - Turtle Bach Trail – 3rd Brigade Downhill Entrance loop from Cobb County Sports Aviation Complex
Expect a ride of two distinct halves. The Turtle Back Trail section offers fast-flowing singletrack, winding through forests and wetlands with rock features, multiple bridges, berms, and dips that keep you engaged. You'll enjoy peaceful, scenic views and might even spot deer or bobcats. While the terrain here is intermediate, the real test comes on the Third Brigade Downhill Entrance, where you'll encounter a short, fast descent featuring a required gap jump. This section is definitely for intermediate to advanced riders comfortable with aerial features and high speeds, demanding focus and skill.
Planning your visit
Both the Turtle Back and Third Brigade trails are part of the Allatoona Creek Park Mountain Bike Trail System. It's crucial to check the trail status before you head out, as the park often closes trails following rain to prevent damage. These trails are also directional, with the riding direction changing daily, so pay attention to signs at the trailhead. While the route name references the Cobb County Sports Aviation Complex, the core trails are within Allatoona Creek Park.
- Distance: 12.1 miles (19.5 km)
- Elevation gain: 384 feet (117 metres)
- Difficulty: difficult
- Estimated time: 1 hours and 36 minutes
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