Go Steep

Hike a short but hearty loop in Summitridge Park at Diamond Bar

Whether you’re looking for an intense workout or a moderate one, Steep Canyon Trail in Diamond Bar has you covered. This 1.5-mile loop in Summitridge Park can be either a steep climb or a gradual incline up the 416 feet of elevation gain. It just depends on which direction you take the loop.

Either way, the trail starts out with a solid leg-burner: stairs. At the top of the staircase choose to go up the Steep Canyon Trail to your left (clockwise loop) or take the Canyon Loop spur to the right (counterclockwise loop). Heading clockwise is 0.6 mile of incline, except for one part where the trail descends and rises sharply, passing through a little ravine for an extra dose of leg-burning exercise.

There are several benches for catching your breath and admiring the view of the surrounding cities, where palm trees sit in the foreground and the snowy San Gabriel Mountains in the distance are a quintessentially Southern California vista. Back up on top of the hill, follow the Diamond Bar Center Trail for around 200 yards until you see the Canyon Loop Trail, which will finish your loop and bring you back to the top of the stairs.

This stretch is a nice treat after conquering the Steep Canyon Trail, with lots of shade from oak and sycamore trees and a moderately graded downhill slope. For something slightly easier, head counterclockwise at the top of the stairs and do the canyon first, which spreads the incline over 0.8 mile. It’s a gentler climb, but be cautious on those steep downhills because they can get slippery.

Steep Canyon Trail is located in Summitridge Park in Diamond Bar. Street parking only. Open from 30 minutes before sunrise to 30 minutes after sunset. Dog friendly!

Story and photos by Natalie Bates, @wanderwithnatalie

Trending Stories NorCal

View all Stories
  1. Man hiking up a trail at Montara Mountain, with a view of the Pacific and Grey Whale sand beach in the background

    From Beach to Summit

    No need to decide between a beach and a mountaintop—this hike includes both! Explore the stunning coastal scenery on this 6-mile out-and-back up Montara Mountain and into Rancho Corral de Tierra.

    View
  2. Picnic and a Pedal

    West Marin has all the right stuff for an afternoon getaway: bike paths, babbling brooks, canopy forests, and secluded picnic spots. Combine a picnic and a pedal at Samuel P. Taylor State Park by biking the easygoing Cross Marin Trail.

    View
  3. Sebastopol Food & Wine Roll

    One apple farm, three charming towns, multiple wineries, and infinite natural beauty. Savor a perfect autumn day in Sonoma County by biking the West County Regional Trail from Sebastopol to Forestville via Graton. It’s a 17-mile (round-trip) adventure. 

    View
  4. Go, Tell It on the Mountain

    Want to be king of the mountain? Head to King Mountain, the 108-acre open space preserve just above Larkspur in Marin. Despite its lofty name, hiking King Mountain proves that simp

    View

Trending Stories SoCal

View all Stories
  1. Woman walking in the Venice Canals of Los Angeles County

    Canal Contemplations

    With its incense-scented boardwalk, bohemian shops, skateparks, and abundance of body builders, Venice is happily eccentric, and artistic. Exhibit A: Its network of European-style canals with charming bridges, offering a tranquil tour of the town’s history.

    View
  2. Sponsored

    Yes, Seattle!

    Ready to try something new this winter? Seattle’s ready for you! Beautiful by nature with its Puget Sound setting, surrounding mountains, and nearby national parks, winter in Seattle can be a magical and festive time. Ever been in a hot tub boat?...

    View
  3. Wine Down, Dine Out in Lake Chelan

    The fertile soil around Washington State's Lake Chelan is ripe for more than just the amazing apples. Vineyards here yield high quality grapes, and some of the country’s best less-discovered wineries. Locals know it, and you will too when you start choosing from the more than 30 wineries in the region.

    View
  4. What's Up, Winthrop!

    It’s not just its location close to Washington State’s spectacular and less visited national park (North Cascades) that makes Winthrop such a winsome mountain town. This lively enclave in the Methow Valley bristles with a whimsical blend of Wild West charms, contemporary culture, and a mosaic of outdoor adventures—from river to lake to waterfalls, and beyond.

    View