Near the Bay Area’s majestic Mt. Tamalpais exists an ultrarunner’s perfect training ground. With hundreds of miles of trails and ideal weather year round, it’s no surprise that many of America’s top ultrarunners call this part of Northern California home, including Olivia Amber.
This was the eighth year of the FOURmidable 50K, put on by SingleTrack Running, who uses their mapping sorcery to concoct a 50k that’s not for the faint of heart. While perhaps it pales in technicality compared to my last ultra at the Broken Arrow 52K this past June, it makes up for it in ever-undulating terrain. Read more at URM online.