This route encompasses the three most popular peaks in Montaña de Oro State Park -  Valencia, Oats and Hazard peaks. I believe this is the most efficient way to hit all three peaks while staying on trail the entire time and not returning to the main road.

A well established mountain adventure involving running for about 18 miles and climbing 3 miles along a world-class ridgeline. This one has been written up in the American Alpine Journal, Climbing Magazine, Cirque of the Towers & Deep Lake rock climbing guide by Steve Bechtel and across the internet. It is undeniably classic for it's length, quality, and superb position on the Continental Divide at alpine elevations.

This route leads to the summit of one of the most iconic peaks in The Eastern Townships of Quebec.  The North side of the peak is a shear rock wall favoured by climbers and there are four trails to attain the epic views from the top.  The route starts and ends at the Mount Pinacle trailhead in the village of Baldwin Mills.  The route climbs to the summit at 665m (2,181 feet).

https://www.alltrails.com/trail/canada/quebec/mont-pinacle-trail