socalpeakbagger - Jul 5, 2016 11:48 pm Date Climbed: Jun 11, 2016
3 peak route from Clamshell
Tough but totally worth the effort...by the time I made it to Monrovia Peak, my pants had turned brown and green from all the bush-whacking. Hiked from Clamshell Peak to Rankin Peak to Monrovia Peak, hiked out from Ben Overturff...would recommend this route, so you can re-supply on water at the spring.
johnm - Jun 5, 2016 8:23 pm Date Climbed: Jun 5, 2016
Clamshell Ridge route
Nice June day to complete the loop. As others have said, the route is overgrown and requires plenty of bush wacking. But worthy of days effort. Views are terrific, the 10 mile walk back not so much.
aklackner - Jan 3, 2014 7:15 pm Date Climbed: Dec 28, 2013
Needs some love
Did the 3 peak loop starting from Lower Clamshell Road. Used the GPX from here http://www.everytrail.com/downloadGPX.php?file=user_data/GPX/123845.gpx&name=123845. Thanks Ze. ~8hrs car to car. Once on the Bill Cull trail it becomes more and more clear this doesn't see much use. The firebreak up to Clamshell peak is overgrown and eroded toward the top of Clamshell peak. I would recommend long pants but didn't find it as badly brushy as other posters. One of the coolest things about this hike was that there were more dear tracks than shoe prints on the trail. Also found some "large" mountain lion tracks from Rankin to Monrovia peak and on the decent towards the power lines. Very nice views of LA and the San Gabes. Good climb up, very worth doing but will think twice about the 10 miles back down on the road.
orbitor - Apr 10, 2012 1:18 pm Date Climbed: Mar 6, 2011
Via Clamshell Ridge
Took brushy ridge up to Clamshell Truck Trail, bagged Clamshell & Rankin en route to Monrovia. Just beat a storm down the other side.
SierraCJ - Feb 27, 2012 1:24 pm Date Climbed: Feb 25, 2012
Again 4 weeks later!
From Monrovia Canyon Park on the fire road to Rincon Red Box and then up to the summit. 20+ mile day in the San Gabriel Mountains!!
SierraCJ - Jan 30, 2012 12:06 pm Date Climbed: Jan 28, 2012
With Rankin and Clamshell
Great hike on an absolutely wonderful day. Steep firebreak from trailhead to Clamshell. Great ridge hike from Clamshell to Monrovia. Steep but very fun descent back to car. Definitely doing this one another day.
cab - Nov 28, 2011 10:37 am Date Climbed: Nov 24, 2011
Road
Early Thanksgiving morning start. Hiked up the road to the summit in the fog then back down. Took the Ben Overturff trail on the way down which I highly recommend.
henrychen - May 12, 2011 4:46 pm Date Climbed: May 7, 2011
3 Peaks day
Along with Clamshell and Ranking, great view along the ridge!
theronmoon - Jun 9, 2010 10:09 pm Date Climbed: Jun 9, 2010
Awesome view!
Spent 3 days on the summit area working and have atleast 2 more to go. Views were amazing. Better then I expected.
Ze - Jan 20, 2009 11:28 pm Date Climbed: Jan 17, 2009
via Clamshell Ridge
with a group of 9. I enjoyed the brush since I was prepared for it this time!
mdougherty - Apr 23, 2008 4:29 pm Date Climbed: Dec 22, 2007
From Monrovia Canyon Park
Up HPS route 3 with a Sierra Club group. Last hike of 2007.
bechtt - Mar 20, 2008 11:45 pm Date Climbed: Mar 9, 2008
Clamshell Ridge route
Great loop of Clamshell, Rankin and Monrovia with Bob and Coco the Dog. Tougher hike than expected. Route to Clamshell very bush with lots of ticks.
David Rosenberg - Sep 23, 2007 5:32 pm Date Climbed: Feb 26, 2006
Great Front-Range Hike
Great elevation gain for the front range. Perfect for the winter combined with Rankin and Clamshell.
Bob Burd - Jul 8, 2007 12:35 am Date Climbed: Jan 15, 2007
From Monrovia Mtn Park
With Clamshell and Rankin for an enjoyable outing. Trip Report
Hiked up the ridge and down the sawpit canyon fireroad. A little hot, the ridge trail is a little overgrown. Also hiked Clamshell Peak and Rankin Peak.
socalpeakbagger - Jul 5, 2016 11:48 pm Date Climbed: Jun 11, 2016
3 peak route from ClamshellTough but totally worth the effort...by the time I made it to Monrovia Peak, my pants had turned brown and green from all the bush-whacking. Hiked from Clamshell Peak to Rankin Peak to Monrovia Peak, hiked out from Ben Overturff...would recommend this route, so you can re-supply on water at the spring.
johnm - Jun 5, 2016 8:23 pm Date Climbed: Jun 5, 2016
Clamshell Ridge routeNice June day to complete the loop. As others have said, the route is overgrown and requires plenty of bush wacking. But worthy of days effort. Views are terrific, the 10 mile walk back not so much.
aklackner - Jan 3, 2014 7:15 pm Date Climbed: Dec 28, 2013
Needs some loveDid the 3 peak loop starting from Lower Clamshell Road. Used the GPX from here http://www.everytrail.com/downloadGPX.php?file=user_data/GPX/123845.gpx&name=123845. Thanks Ze. ~8hrs car to car. Once on the Bill Cull trail it becomes more and more clear this doesn't see much use. The firebreak up to Clamshell peak is overgrown and eroded toward the top of Clamshell peak. I would recommend long pants but didn't find it as badly brushy as other posters. One of the coolest things about this hike was that there were more dear tracks than shoe prints on the trail. Also found some "large" mountain lion tracks from Rankin to Monrovia peak and on the decent towards the power lines. Very nice views of LA and the San Gabes. Good climb up, very worth doing but will think twice about the 10 miles back down on the road.
orbitor - Apr 10, 2012 1:18 pm Date Climbed: Mar 6, 2011
Via Clamshell RidgeTook brushy ridge up to Clamshell Truck Trail, bagged Clamshell & Rankin en route to Monrovia. Just beat a storm down the other side.
SierraCJ - Feb 27, 2012 1:24 pm Date Climbed: Feb 25, 2012
Again 4 weeks later!From Monrovia Canyon Park on the fire road to Rincon Red Box and then up to the summit. 20+ mile day in the San Gabriel Mountains!!
SierraCJ - Jan 30, 2012 12:06 pm Date Climbed: Jan 28, 2012
With Rankin and ClamshellGreat hike on an absolutely wonderful day. Steep firebreak from trailhead to Clamshell. Great ridge hike from Clamshell to Monrovia. Steep but very fun descent back to car. Definitely doing this one another day.
cab - Nov 28, 2011 10:37 am Date Climbed: Nov 24, 2011
RoadEarly Thanksgiving morning start. Hiked up the road to the summit in the fog then back down. Took the Ben Overturff trail on the way down which I highly recommend.
henrychen - May 12, 2011 4:46 pm Date Climbed: May 7, 2011
3 Peaks dayAlong with Clamshell and Ranking, great view along the ridge!
theronmoon - Jun 9, 2010 10:09 pm Date Climbed: Jun 9, 2010
Awesome view!Spent 3 days on the summit area working and have atleast 2 more to go. Views were amazing. Better then I expected.
Ze - Jan 20, 2009 11:28 pm Date Climbed: Jan 17, 2009
via Clamshell Ridgewith a group of 9. I enjoyed the brush since I was prepared for it this time!
mdougherty - Apr 23, 2008 4:29 pm Date Climbed: Dec 22, 2007
From Monrovia Canyon ParkUp HPS route 3 with a Sierra Club group. Last hike of 2007.
bechtt - Mar 20, 2008 11:45 pm Date Climbed: Mar 9, 2008
Clamshell Ridge routeGreat loop of Clamshell, Rankin and Monrovia with Bob and Coco the Dog. Tougher hike than expected. Route to Clamshell very bush with lots of ticks.
David Rosenberg - Sep 23, 2007 5:32 pm Date Climbed: Feb 26, 2006
Great Front-Range HikeGreat elevation gain for the front range. Perfect for the winter combined with Rankin and Clamshell.
Bob Burd - Jul 8, 2007 12:35 am Date Climbed: Jan 15, 2007
From Monrovia Mtn ParkWith Clamshell and Rankin for an enjoyable outing. Trip Report
Travis_ - Jul 7, 2007 11:59 pm Date Climbed: Jul 7, 2007
3 peak loopHiked up the ridge and down the sawpit canyon fireroad. A little hot, the ridge trail is a little overgrown. Also hiked Clamshell Peak and Rankin Peak.
Here is my GPS track and some other stuff.