Join the 12th annual

Southern California Six-Pack of Peaks Challenge

January 1, 2026 to december 31, 2026

One Membership. All Challenges. Your Adventure Starts Here.

Nikki

Ontario Peak

A group of friends completed Ontario, Bighorn, and Cucamonga. Started a little after 3am. When it started getting warmer, the bugs/flies were terrible.

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Timothy

Ontario (1 of 2)

Started at 3 a.m.  Originally planned to do ECBO but we decided to do it backwards,OBCE.  Ontario was the first stop!

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Eric

Ontario Peak with Bugs

BUFF'S REVIEW: Would I recommend this trail? YES. At 8,662′ Ontario Peak is one of the tallest peaks in the Cucamonga Wilderness. Other worthy peaks

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Eric

Ontario Peak with Bugs

ERIC'S REVIEW: Would I recommend this trail? YES. At 8,662′ Ontario Peak is one of the tallest peaks in the Cucamonga Wilderness. Other worthy peaks

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