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. Sponsored

    The 2025 Hiking Calendar Is Here!

    Ready to make hiking part of your New Year’s wellness plan? Get the all-new 2025 Hiking Calendar courtesy of Peninsula Open Space Trust (POST).

    View
  2. Most Peaceful Hike of All

    Is this the most peaceful one-hour hike in the Bay Area? It's got our vote! Lake Lagunitas is the smallest lake in a series of five found on the north side of Mount Tam, so it’s got that tiny but mighty charm. Do a 1.5-mile loop around the lake's shore-hugging trail.

    View
  3. Two hikers at Bear Creek Redwoods Regional Preserve on a new trail.

    New Trails at Bear Creek

    Looking for new trails? Bear Creek Redwoods Open Space Preserve has added 170 acres of forest, grassland, and historical sites. Hike this 3.5-mile loop through the new addition.

    View
  4. Woman swimming in Carson Hotsprings natural thermal pool

    Hot Springs, Naturally

    Thermal spring waters are famous for their curative, relaxing elements, and Reno Tahoe is filled with them! Sink into these amazing thermal respites for a wellness super soak.

    View

Trending Stories SoCal

View all Stories
  1. Animal Encounters

    Located where Redding’s famous Sundial Bridge overlooks the Sacramento River, Turtle Bay Exploration Park is 300 acres of gardens, a museum and playground, aquarium, and unforgettable up-close animal encounters!

    View
  2. Weekend Sherpa Podcast
    Sponsored

    Weekend Sherpa Podcast: Take It Outside

    Adventure for your earbuds. What's new in the world of the outdoors? Listen to Weekend Sherpa co-founders discuss local hikes, beaches, bike rides, camping spots and all kinds of travel and adventure in California and beyond!

    View
  3. Locals' Feature: Max Smith of Moment Skis

    Meet Max Smith, VP of Moment Skis in Reno, Nevada. Moment is the largest ski manufacturer in the US and you can see how their innovative and artistic skis are made by visiting Moment Skis headquarters in Reno. The Factory is where the magic happens, so drop in for a visit and say hi to the team, including employee dogs who are on quality control.

    View
  4. Woman hiking down the stairs to Coast Royale Beach in Orange County

    Secluded Royale

    Panoramic coastal views and a killer leg workout combine on this 2.7-mile (round-trip) out-and-back hike to secluded Coast Royale Beach in Orange County

    View