As you do your holiday shopping, if you are using Amazon, please consider using the Amazon Smile program. At no cost to you, Amazon will donate 0.5% to a charity of your choice. We hope you will consider choosing Rim of the World Interpretive Association.
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TRAFFIC DELAYS- Visitors to the mountain may experience traffic delays as CALTRANS begins work on Highway 18. The work is scheduled to be done Mondays through Fridays from 7 a.m. to 3 p.m., and involves closing one lane of traffic in each direction. The completion date is expected to be the spring of 2024.
Hours & Events
Enjoy our fall newsletter for even more updates!
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.
The forest is changing to its Fall colors.
You can sense the forest changing as winter approaches. We hope you can visit the Arboretum and see it in its glorious colors.
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: firstname.lastname@example.org.
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.