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8.9 miles
Distance
750 ft
Climb
-748 ft
Descent
426 ft
High Point
1 ft
Altitude change
74 ft
Altitude min
164 ft
Altitude start
164 ft
Altitude end
-37.9%
Grade max
21.9%
Grade min
4 miles
Distance climb
4 miles
Distance down
1 mile
Distance flat
This Blue Hills loop connects most of the intermediate sections of both the white and yellow triangle trails. It avoids some of the more difficult sections but there is still some tough climbs and rocky descents. This is fairly easy to follow as most of the route follows the triangle markings on the trees.
You just need to pay attention to when the route diverts off of the trail markings from time to time. This is a great loop to connect to the Ponkapoag section of the Blue Hills. .
Detailed Description
White Yellow Triangle Modified is a 9 mile popular intermediate route located near Milton Massachusetts. This mountain bike only route can be used both directions and has a moderate overall physical rating. This route includes 50 trails. This route climbs 750 ft with a max elevation of 426 ft then descends -748 ft.
Trail Issues on Route
- Significant Issue / Amber: 2 trails (newest: Jan 12, 2026)
- Minor Issue / Yellow: 3 trails (newest: May 31, 2026)
Local Trail Association
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Stats
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Distance9 miles
-
Avg time2 hr 57 min
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Altitude min74 ft
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Altitude start164 ft
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Altitude end164 ft
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Climb750 ft
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Descent-748 ft
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Grade max-37.9%
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Grade min21.9%
-
Distance climb4 miles
-
Distance down4 miles
-
Distance flat1 mile
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Trails in Route
| 407 ft | |||||
| 1,437 ft | |||||
| 102 ft | |||||
| 230 ft | |||||
| 125 ft | |||||
| 1,854 ft | |||||
| 1,316 ft | |||||
| 850 ft | |||||
| 407 ft | |||||
| 781 ft | |||||
| 728 ft | |||||
| 358 ft | |||||
| 2,680 ft | |||||
| 1,240 ft | |||||
| 220 ft | |||||
| 105 ft | |||||
| 699 ft | |||||
| 266 ft | |||||
| 1,988 ft | |||||
| 233 ft | |||||
| 922 ft | |||||
| 584 ft | |||||
| 220 ft | |||||
| 909 ft | |||||
| 1,407 ft | |||||
| 830 ft | |||||
| 617 ft | |||||
| 1,811 ft | |||||
| 883 ft | |||||
| 118 ft | |||||
| 89 ft | |||||
| 2,343 ft | |||||
| 157 ft | |||||
| 98 ft | |||||
| 2,028 ft | |||||
| 407 ft |
Details
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Riding area
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Primary ActivityMountain Bike
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Difficulty ratingBlue
-
Route TypeLoop
-
eBike Allowed
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Bike typeXC
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DirectionBoth Directions
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Physical ratingModerate
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Photos
Videos
Chill Run on Lower Coon Hollow
trail: Coon Hollow Path
2:18 | 208 | comments: 0 | favs:
Oct 19, 2022
Quick clip of the lower section of Coon Hollow at Blue Hills
Blue Hills
trail: Coon Hollow Path
0:01 | 1362 | comments: 0 | favs: 1
Nov 10, 2015
Blue Hills Milton, MA.
Trail: The Coon
Recent Trail Reports Along Route
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- By TrailGrunt
& contributors - #16915 - 1,961 views
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