VISITOR ALERT: Closed for more than two weeks, HPA to reopen soon

As 2021 gave way to 2022, winter storms descended on the San Bernardino Mountains. In early January the Arboretum was closed due to extensive storm-related tree damage. Working tirelessly, the U.S. Forest Service has cleared the main sidewalk and trail obstructions. Although collected debris remains on site, the Arboretum is set to reopen in the next few days.  Please watch for word of that official Forest Service action here.  Please note, too, that Hwy. 18 near its intersection with Hwy. 138 (just below Crestline) is undergoing major repairs due to heavy rain in late December.  A pilot car is escorting north- and south-bound traffic flows until the project is completed. The other two major routes into the mountains are Hwy. 330 (from Highland to Running Springs) and Hwy. 38 (from Redlands to Big Bear). The Caltrans highway-information number is 800.427.7623.

Hours & Calendar

Because of the wildlife in and around the Arboretum, it's potentially unsafe to visit the site and especially to hike the Sequoia Trail after dark. During daylight hours, that's not an issue.

With schools back in session, the booth is now open on weekends only--from 11 a.m. to 3 p.m. We accept cash and cards, but please note that the minimum credit or debit purchase is $10.
Events Calendar

Adventure Passes

An Adventure Pass or other valid pass (such as America the Beautiful) is required to park in the Arboretum’s lot–whether or not the Information Booth is open. As always, entrance to the Arboretum itself is free.

Getting Here

We're in the San Bernardino National Forest between Lake Arrowhead and Running Springs. The main routes leading to Heaps Peak Arboretum are Highways 18 and 330. (Caltrans highway info: 800.427.7623.)

29358 Rim of the World Hwy. 18
Skyforest, CA 92385
Directions & Parking

Spring Native Plant Sale: May 28, 2022

The Spring Native Plant Sale is slated for Saturday, May 28, 2022 (Memorial Day weekend), beginning at 9 a.m. Please visit our site again closer to the actual event date to check on any schedule changes. The plant list below, from the Oct. 16 sale, is for your information.

Explore the Forest

This family- and dog-friendly trail is nearly one mile long. Descending and then rising gently, it’s an easy hike with numbered signposts along the way. An information-rich trail guide, keyed to those numeric posts, makes your hike even more interesting and educational.

Photo: Anneke Fischle

The Arboretum’s gardens display a wide variety of flowers, shrubs and other plants. Largely native to the San Bernardino Mountains, many of them are identified by easy-to-read signs. The nearby Information Booth offers print and visual aids to help you learn even more!

Expertly guided tours are available on request. They’re intended especially for visiting groups such as schoolchildren, Boy and Girl Scouts, gardening clubs and birdwatchers. For details: info@hparboretum.com.


Through habitat restoration, trail maintenance and other efforts, we’re working to protect and conserve our area’s expanse of the National Forest.

Native Plants

Heaps Peak Arboretum has a diverse collection of mostly native trees, shrubs, wildflowers and other plants. Some of them might do well in your garden. Learn more at the Arboretum!

about us

Rim of the World Interpretive Association

Rim of the World Interpretive Association (ROWIA) is a California nonprofit, public-benefit corporation founded in 1982. In partnership with the U.S. Forest Service, we maintain and staff Heaps Peak Arboretum. 

We’re committed to PROTECTING AND CONSERVING our natural resources for future generations to enjoy.