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Michael D. Antonovich Trail

Easy/Intermediate Easy/Intermediate
 2.2 (11)
  1. Areas
  2. CA
  3. …Los Angeles
  4. …Pomona
  5. Frank G. Bonelli Regional Park
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“A nice shaded trail with lots of stream crossings - pretty mellow. ”

Andy Gawne
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2.5

Miles

4.1

KM
Doubletrack

883' 269 m

High

583' 178 m

Low

53' 16 m

Up

334' 102 m

Down

3%

Avg Grade (2°)

15%

Max Grade (9°)

Dogs Leashed

E-Bikes Unknown

Description

Park at the lot at the trailhead. Start out descending into the canyon and follow the trail. You'll ride through the creek several times and go through a couple of parking lots. The trail dead ends at a parking lot about 3 miles in. This is the turnaround point to make it an out and back ride.

It's generally not too crowded but there can be horses here.

Contacts

Land Manager: City of San Dimas, CA - Parks and Recreation

Shared By:

Andy Gawne
Full Details

Trail Ratings

  2.2 from 11 votes

#14

in Frank G. Bonelli Regional Park

#37309

Overall
  2.2 from 11 votes
5 Star
9%
4 Star
9%
3 Star
18%
2 Star
18%
1 Star
45%
Trail Rankings

#14

in Frank G. Bonelli Regio…

#3,239

in California

#37,309

Overall
8 Views Last Month
3,701 Since Apr 13, 2014
Easy/Intermediate Easy/Intermediate
57%
0%
43%
0%
0%
0%
Add a Photo

Photos

This is a mountain spring that flows year round. It's deep on the Cucamonga Trail, and you have to mash hard to get to this elevation. It's always shady and a welcome rest stop!
Oct 25, 2024 near San Dimas, CA
Looking Northeast from the backside of Bonelli Park
Oct 21, 2014 near San Dimas, CA
Most of the trail is like this
Apr 13, 2014 near Charter…, CA
One of the many water crossings, difficult to ride across and a bit deep.
Nov 7, 2017 near Charter…, CA

3 Comments

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Weather

Current Trail Conditions

Unknown
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Check-Ins

Aug 8, 2025
Anonymous
Lots of stream crossings. Wooden pegs on trail coming down at the start of trailhead. Not MTB friendly. Mostly a hiking trail.
Apr 17, 2022
Winston Gotte
Nov 20, 2019
Jeff Sewell
Too many unrideable stream crossings. Fail
Mar 7, 2019
Harry Baca
water was running had to cross river on a log
Oct 20, 2017
Rene Baquet
No one mentions the 9 or 10 water crossing. Most you can't ride across and a few are very deep. 2.5mi
Nov 27, 2016
Elias Gennaoui
Oct 17, 2016
Vince Aleman
2 out of 5 stars is a very fair writing for this trail. It was pretty mellow and fun. The trail crossed the creek a lot and at times was pretty sketch 2.5mi
Jun 28, 2015
Cesar Sarmiento
2h 00m

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