It's a Wrap — The 2nd Annual Run the Rim is in the books. 191 runners. 167 finishers. Five distances. One finish line celebration at White Pines Lake. From the 5K loop around White Pines Lake to the 50K point-to-point traverse of the full Arnold Rim — 31 miles, 5,500 feet of climbing, three drainages, [...]
Join retired National Park Service Rangers, Nancy Muleady-Mecham and Mary Anne Carlton as they share their extensive knowledge of the ecology and natural history of the Arnold Rim Trail and this area. ART Natural History Hikes with Nancy Muleady-Mecham, PhD Join Biology Professor Nancy Muleady-Mecham (Doc Nancy) for a stroll along the Arnold [...]
We wanted to provide a quick update on the state of trails on the Arnold Rim Trail System. We're making excellent progress out there. A big thank you to the Forest Service and all of the ARTA sawyers and volunteers who have been actively working to clear the trails. There are still trees [...]
There are many trees down across the Arnold Rim Trail due to the recent storm. Please use caution when accessing the trail system and check Trailforks for current conditions, photos, and updates before heading out. The Forest Service and ARTA volunteers are actively working to clear the trails, but it will take some [...]
UPDATE: Thank you to the many ARTA trail lovers who joined us on January 8th, 2026 - 6PM-7PM for our Arnold Rim Trail Community Update. Click here to view Our Planning Resources Page, which includes slides from our presentation, maps and documents referenced during our meeting. To view the map of the USFS proposed action, [...]
With the recent sightings of a Mountain Lion on the Rim Trail, it's very important to stay alert and brush up on how to reduce the risk of a bad encounter. The chances of an attack are very low, but take a moment to review the below details from the USFS before you hit the [...]
View the Survey Results The ARTA Community Survey and associated outreach was conducted by the Arnold Rim Trail Association to gauge community engagement and provide more information to guide ARTA in project development and implementation, with the support of the Calaveras Ranger District of the Stanislaus National Forest. The survey was active for a [...]
Share your love of the trails wherever you go with our beautiful custom swag! Dave Christian Design T-Shirts $15 Select sizes available in both designs. ART Logo Cotton T-Shirts $15 Youth medium and adult small sizes available in limited stock. ART Mugs [...]
Seeking Public Input! The Arnold Rim Trail Association (ARTA) has launched an online survey to gather community input for the development of a Master Plan for the Arnold Rim Trail. ARTA is a volunteer-driven, non-profit organization dedicated to the development, maintenance, and promotion of the Arnold Rim Trail, a premier non-motorized, multi-use recreational trail [...]
Mission Accomplished! The Arnold Rim Trail Association is overflowing with gratitude to the entire community for stepping up and donating ten thousand dollars to match the National Wilderness Stewardship Alliance grant. The goal was achieved in just one month's time. We deeply appreciate your support! Donations are still welcomed for the many trail enhancements and [...]
