more stats
721 ft
Distance
13 ft
Climb
00:00:46
Avg time
13 ft
Altitude change
2,523 ft
Altitude min
2,536 ft
Altitude max
2,523 ft
Altitude start
2,536 ft
Altitude end
1.808%
Grade
-0.654%
Grade max
2.66%
Grade min
583 ft
Distance climb
138 ft
Distance flat
00:00:46
Avg time

Big underpass Details

  • Activities
    • Mountain Bike
    • Gravel Bike
    • Adaptive Bike
    • Hike
    • Trail Running
  • Riding Area
    Sparrow Hill
    Canberra
  • Difficulty Rating
    Access Trail or Doubletrack Rate
  • Local Popularity
    70 in Mountain Biking [+]
    • 5 in Trail Running
    • 5 in Hiking
  • Trail Type
    Singletrack
  • Bike Type
    Gravel, Adaptive MTB
  • Direction
    Both Directions
  • Dogs Allowed
    Yes
  • eBike Allowed
    No

No community description for Big underpass trail has been added yet!

AI Generated Description

Big underpass is a 220 m popular singletrack trail located near Canberra. This mountain bike primary trail can be used both directions. On average it takes minutes to complete this trail.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 1 rides
  • 14 miles average
6 Months
  • 28 rides
  • 12 miles avg distance
All
  • 433 rides
  • Last: Aug 15, 2026
c1c2c3c4
January
February
March
April
May
June
July
August
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Status:
on Nov 30, 2025
Ideal
Avg: 3.98 (1 votes)
Your vote: 0

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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.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Ridden
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
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Activity Recordings
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Activity Recordings
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Winter Trails
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Missing Trails
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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

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.

map legend
Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to big-underpass trailhead (-35.328440, 149.351580)
        View on Discover Map

        Photos

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        Videos

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        Routes with this trail

        1
        Kow and Corn Day 1 Gravel
        56 miles • 3,806 ft • 2 •
        A point to point route from Canberra to Braidwood on mainly gravel roads that follows the main Low and...
        50
        2019 CORC 25km (all) 50km (lap 1 of 2)
        15 miles • 1,331 ft • 58 •
        Lap 1 of the 2019 CORC 50km Race and the full 25km race
        51
        2019 CORC 50km (lap 2 of 2)
        14 miles • 1,282 ft • 51 •
        Lap 2 of the 2019 CORC 50km Race
        4.0 ★★★★★
        1 Ratings
        5 ★
        4 ★ 100%
        3 ★
        2 ★
        1 ★

        Reviews / Comments

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        Nearby Trails

        Sparrow Hill

        • By Jake-HannahTF Pro MPTA & contributors
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        Frequently Asked Questions About Big underpass

        ▼ Where is Big underpass located?
        Big underpass is located in Sparrow Hill, Canberra, Australia. It is part of the Sparrow Hill trail network. The trailhead is located at coordinates -35.32844, 149.35158.
        ▼ What is the elevation gain for Big underpass?
        Big underpass has 13 ft of elevation gain. The elevation ranges from 2,523 ft to 2,536 ft.
        ▼ Is Big underpass a point to point trail?
        Big underpass is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
        ▼ How long is Big underpass?
        Big underpass is 721 ft long. The trail type is singletrack.
        ▼ Are dogs allowed on Big underpass?
        Yes, dogs are allowed on Big underpass. Please keep dogs on a leash where required and clean up after them.
        ▼ When is the best time of year to ride Big underpass?
        Based on activity log data, the most popular months to ride Big underpass are:
        • July (43 activities)
        • June (40 activities)
        • October (40 activities)
        Check the reports page for current trail conditions.
        ▼ How do I access Big underpass? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Big underpass are: View all parking locations in the area.
        ▼ How long does it take to ride Big underpass?
        Based on recorded activities, it takes an average of 1 minute to ride Big underpass. The trail is 721 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
        ▼ How busy is Big underpass?
        Big underpass is a very popular trail. There have been 2,264 recorded activities on this trail. The trail has received 2,754 check-ins. View recent activity on this trail.

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