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Marin Three Lakes Loop

Intermediate
 4.0 (29) RECOMMENDED ROUTE

A scenic tour of Marin Municipal Water District watershed lands and lakes.


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Map Key

14.3

Miles

23.1

KM

0%

Singletrack

989' 301 m

High

24' 7 m

Low

1,445' 440 m

Up

1,444' 440 m

Down

4%

Avg Grade (2°)

21%

Max Grade (12°)

Dogs No Dogs

E-Bikes Unknown

Overview

While tourists flock to Muir Woods, this ride on the opposite side of Mount Tamalpais will avoid the crowds while exploring a wooded landscape dotted with lakes. The climbs are gradual and mostly shaded and after a tour of the lakes you're rewarded with a fun descent to the trailhead.

Description

This ride starts in the town of Ross near Ross Commons Park where parking is available on street and in a parking lot next to the Post Office. There is limited parking at Natalie Coffin Greene Park which may come in handy, as the trailhead fills quickly- especially on weekends.

It's about a mile up paved Lagunitas Road from Ross to reach the trailhead at Phoenix Lake which is the first of the three lakes in the tour. Keep right along the lake shore to the 4-way intersection and stay on the Shaver Grade trail to the right. Shaver Grade follows a shaded creek canyon and gradually climbs a ridge where you reach the Five Corners junction. A sharp left will keep you on Shaver Grade, and is followed with a short climb to Sky Oaks Road.

A right on Sky Oaks Road and quick left will bring you to Bon Tempe Road: Sky Oaks Road - Bon Tempe Lake connector and across Bon Tempe Lake dam with nice views of Mount Tam and if the water level is high enough, you may see the upper part of Alpine Lake below the dam.

Double back across the dam and turn left onto Bullfrog Road which loops around to the north and rejoins Sky Oaks Road. Turn right on paved Sky Oaks Road and follow it along the upper part of Bon Tempe Lake to the parking area near Lake Lagunitas. Continue up the access road to the dam then across to the Lake Lagunitas Loop Trail. Follow the trail in a counter-clockwise direction along the shoreline.

At the upper end of the lake, turn right on the Lakeview Road trail. For an easier ride option, loop around the lake back to Sky Oaks Road and returning via Shaver Grade. Lakeview Road is a steady climb becoming steeper as it joins Eldridge Grade. Eldridge Grade is a downhill run, steep in places, all the way to the junction with Shaver Grade where a right turn brings you back to Phoenix Lake and the trailhead.

Contacts

Shared By:

Bob Gardner

Trail Ratings

  4.0 from 29 votes

#5

in Marin County

#680

Overall
  4.0 from 29 votes
5 Star
21%
4 Star
62%
3 Star
14%
2 Star
0%
1 Star
3%
Recommended Route Rankings

#5

in Marin County

#104

in California

#680

Overall
315 Views Last Month
21,079 Since Jan 7, 2016
Intermediate

5%
23%
64%
5%
5%
0%

Photos

Lagunitas Lake on the 3 Lake Loop Trail
Mar 30, 2022 near Kentfield, CA
Treading lightly ...
Nov 11, 2021 near Kentfield, CA
Lake Lagunitas, from the 3 Lake Loop trail
Mar 30, 2022 near Kentfield, CA
Spillway from Alpine Lake
Nov 11, 2021 near Fairfax, CA
Just a little shot of Phoenix lake on the 3 Lake Loop
Mar 30, 2022 near Kentfield, CA
Bullfrog Trail.
May 13, 2016 near Fairfax, CA

Weather


Current Trail Conditions

Update Conditions
All Clear 82 days ago See History
Add Your Check-In

Check-Ins

Apr 24, 2022
Laura Rubio
10h 30m
Mar 26, 2022
Brendan Crockett
Dec 9, 2021
Christopher Johengen
23.4mi — 1h 55m
Oct 14, 2021
Rock E Boy
Bon Tempe is full. Phoenix not so much 15.5mi — 2h 10m
Oct 2, 2021
Joseph Carouba
Sep 25, 2021
Brendan Crockett
tried out the bronson! 7mi — 2h 00m
Aug 14, 2021
Kevin Hu
Aug 4, 2021
Tisa Mantle