Did you know that there are quaking aspens in the San Bernardino Mountains? This unique region is home to just two native aspen groves, Arrastre and Fish Creek Groves, and both are at risk of disappearing in the near future. These trees are not only beautiful but also culturally and ecologically significant, having shaped the landscape for millennia. Aspen play a vital role in maintaining healthy ecosystems by acting as natural firebreaks, protecting water sources, and supporting diverse plant and animal communities.
To ensure their survival, seedling-based restoration is urgently needed in areas where aspens are declining or absent, and where increasing genetic diversity is important. However, despite growing interest, there are currently no aspen seedling production programs in the country. This project seeks to change that by building a foundation for restoration through seed-based efforts, and we invite you to be part of it.
As a citizen scientist, you can contribute by helping monitor aspen trees during Spring 2026—observing and recording their budding and flowering cycles—or by assisting in the collection of seeds. These efforts will help identify reliable seed sources, determine whether collected seeds are viable and genetically appropriate, and develop methods to encourage seed production in younger trees. Together, this work will support the long-term restoration of aspen across the landscape.
Join us in protecting and restoring one of California’s most important and vulnerable tree species. Your participation can make a real difference in preserving these rare groves for future generations.
This is a moderate to strenuous backcountry hike covering approximately 6–7 miles round trip with about 800 feet of elevation gain. Expect trail washouts, rocky and boulder-filled sections, uneven and brushy terrain, creek crossings, and portions of off-trail navigation that require route-finding skills. While the elevation gain is moderate, the rugged conditions and technical footing increase the overall difficulty. Be prepared for insects, variable trail conditions, and slower travel, making this hike best suited for those comfortable with challenging, less-maintained terrain.
Please come prepared by reading this informative information ahead of time:
Aspen Seed Ecology Protocol
Have Survey 123 app downloaded on your phone, and a fully charged phone. QR codes are provided in the Aspen Seed Ecology Protocol
Level: Moderate (Moderate/Difficult)
Signup Instructions: Registration on-line Required
Bring: Layered Clothing, 10 Essentials, sun protection, water, snacks, plants, sturdy hiking shoes/boots, and trekking poles. If possible, bring Binoculars, gloves, hand pruners, glasses (sun/prescription/safety)
Additional Directions: Meeting place details will be provided to all registered participants.
Carpool: Carpool at your own risk
Note: Carpool transportation is at the sole risk of the participants.
Cancellation Policy: Any rain cancels