5.6 miles
Distance
258 ft
Climb
-270 ft
Descent
930 ft
High Point
-10 ft
Altitude change
896 ft
Altitude min
923 ft
Altitude start
912 ft
Altitude end
-0%
Grade
-16.5%
Grade max
13.4%
Grade min
2 miles
Distance climb
2 miles
Distance down
2 miles
Distance flat

Note: Phase 1 is directional by day of week. The trail is ridden clockwise on Tuesdays, Thursdays and Sundays and counterclockwise on Mondays, Wednesdays, Fridays and Saturdays. There is signage at the trail heads indicating which direction to start. Trail runners and hikers should travel in the opposite direction.

The granddaddy of Central Ohio mountain biking, Phase 1, P1 for short, is COMBO's first trail. P1 was built in the early 1990s and is still a favorite for Central Ohio riders. This 5.5-mile trail is designated as a beginner/intermediate trail. There are plenty of roots, bridges, and an optional creek crossing to keep the ride interesting. P1 is considered by many to be the most technically demanding trail in central Ohio solely because of the roots. Bridges are relatively low & wide (compared to P2) but the roots are non-stop

This trail is particularly impacted by wet weather due its heavy usage and soil composition, so please give the trail a couple days to dry out after rain. The normal riding direction on the trail is counterclockwise. Be sure to check COMBO's trail conditions updates before heading out to use the trail.

Detailed Description
Phase 1 is a 6 mile popular intermediate route located near Delaware Ohio. This mountain bike primary route can be used both directions and has a moderate overall physical rating. This route includes 1 trails. This route climbs 258 ft with a max elevation of 930 ft then descends -270 ft.
Route Supporters

Local Trail Association

Local trail association
Central Ohio Mountain Biking Organization (www.combomtb.com)
Please consider joining or donating to the local riding association to support trail development & maintenance.
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Stats

  • Distance
    6 miles
  • Avg time
    1 hr 52 min
  • Altitude min
    896 ft
  • Altitude start
    923 ft
  • Altitude end
    912 ft
  • Climb
    258 ft
  • Descent
    -270 ft
  • Grade
    -0%
  • Grade max
    -16.5%
  • Grade min
    13.4%
  • Distance climb
    2 miles
  • Distance down
    2 miles
  • Distance flat
    2 miles

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Trails in Route

Phase 16 miles

Details

  • Featured
  • Riding area
  • Primary Activity
    Mountain Bike
  • Other Activities
    • E-Bike
    • Winter Fat Bike
    • Hike
    • Trail Running
  • Difficulty rating
    Blue
  • Route Type
    Loop
  • eBike Allowed
  • Bike type
    AM, XC, Fat
  • Direction
    Both Directions
  • Physical rating
    Moderate
  • Activity Logs
    15
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Alum Creek Phase 1 MTB trail 4K Full Loop
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Alum Creek Phase 1 MTB trail 4K Full Loop
trail: Phase 1
39:14 | 1504 | comments: 0 | favs:
Aug 30, 2022

Recent Trail Reports Along Route

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Phase 1
Oct 10, 2026 @ 9:16am (America/Detroit)
Oct 10, 2026
more reports »
  • By gnarbageTF Pro COMBO & contributors
  • #66895 - 397 views

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