REAL TRAIL NAME: Ontario Peak – via IceHouse Canyon, Cucamonga Wilderness

HIKE DATE: Sunday, September 15, 2019

MEETING TIME: 5:45 am – 6:00 am (Please be there on time)
Finish Approx: 2:30 pm

LATH HIKE LEAD: Gaspar Marroquin

HIKE LEVEL: Level 8(Not for beginners. Longer Distance. Switchbacks. Strenuous overall.)
Must be have prior hiking experience for longer distance.

HIKE PREREQUISITE: Must have completed LATH level 6+ (or equivalent) hike.

DISTANCE: 13.9 miles round trip


Claremont Heights Shopping Center – park at Subway (same plaza as Vons.)
550 East Baseline Rd.
Claremont, CA 91711


We’ll caravan to the trail head after we meet at the meeting point.

DRIVE TO TRAILHEAD: 15 miles approx.

PARKING PERMIT (REQUIRED): You will need a $5 Day, or $30 annual, Adventure Pass if you will be parking up at Chantry Flat. Please get this ahead of time from a local Sports store like REI stores, Big 5 Sporting Goods, Outdoor Outlet (Alhambra) and other retailers prior to the hike.  Please try to have this prior to the day of the hike. We recommend purchasing an annual pass ($30) and a second vehicle pass for an additional $5, which totals $35 for two annual passes.

Wilderness Permit is also required, but we will get as a group.

RECOMMENDED for a great experience: (1st- eat a light breakfast),  3 Liters water, 1 electrolyte drink, snacks, lunch, Trekking poles, high top hiking boots, sunscreen, hat, sunglasses, drifit clothing, bug repellent, and or headnet and great attitude!

*Please note, during the summer, weather changes at any moment throughout the canyons unexpectedly, such as high winds. (Facemask/lil towel helps).  So be prepared.

RECOMMENDED: Extra water besides the two liters in the hydration systems, one or two half-liter bottles of water, Extra food, Extra clothing, and Sun protection- sun screen- lip sun block sun hat- sun glasses – Gloves. It could get very cold (winds) and the next minute get hot – so be prepared!

HIKE WALK THROUGH: We will be departing from the parking lot starting off on the Icehouse Canyon trail head. The first mile and half is nice and shaded from the canyons and all the forest trees with views of old cabins and ruins. It’s also along side a beautiful sounding creek within Falling Rock Canyon. The wooded area provides a gradual beginning trek to the hike. The trail will have some gradual rocky terrain that quickly defines the trail as we go towards Sheep Canyon. At this point, we’ll be entering Cucamonga Wilderness and the hike will get more rocky and with more sun exposure, as we reach mile 2 with some trees. We’ll take breaks along the way to make sure everyone is doing okay. At this point we’ll keep going on the rocky terrain passing Lost Creek and getting to Delker Canyon where we will begin on a single track trail with some good, steep and strenuous steady switchbacks that will get us to Icehouse Saddle at a 7500ft elevation. As we ascend, will have views of the San Gabriel mountains along the ridge line and continue on taking the exposed to sun trail to Ontario Peak. We will pass through Kelly camp ground and trek up through some overgrowth of vegetation to pass through. As we continue ascending, the last mile and half is a strenuous trek up till we reach the peak, The views are magnificent and will not disappoint! We’ll then come back down along the same trail back to the trailhead.


1. Read the Hike’s Details we link at the very top of this page.
2. Make sure that the Hike Level accommodates your hiking experience.
3. If, and only if it suits you, then RSVP for this event and show up the day of the hike with all necessary gear and water (we mention everything you need on the details page for this hike).

We take your safety quite seriously, and would not like for you to attend a hike you’re not ready for.  You know your body and hiking experience better than your friends. Whether you are a first-timer or an experienced hiker, please read our hike details page as the hike may not suit your experience level. We have a better experience if every hike has hikers of the intended level.

DISCLAIMER: LA Trail Hikers and its Leads/Organizers/Participants do not take responsibility for any harm,bodily injury, accidents, or damage to personal property. By clicking “Attending,” or attending the hike, you confirming that you understand that all outdoor activity such as hiking, backpacking, and trekking have an associated danger, and will not hold any hike lead/organizer, participant, LA Trail Hikers, or any group associated pet responsible for any hazard to your well being. Additionally, you will not be allowed to participate with the group if you are not adequately prepared with enough water and the right gear/equipment/nutrition essential to complete the hike. You are fully responsible for yourself.