Calero Trail Run - Spring

The Calero Trail Run - Spring takes place at Calero County Park in San Jose, California, offering a variety of distances including 50K, marathon, 25K, half marathon, 15K, 10K, 5K, mile, and a kids run. The course features diverse terrain with single track trails, hills, dirt paths, oak trees, and panoramic vistas, making it a challenging and scenic experience. The 50K distance serves as excellent training for Western States, incorporating exposure and heat conditions.

The event provides marked courses, aid stations, and commemorative medals for finishers. Registration and bib pick-up occur on race day, with detailed course maps available online. Visit the organization's website for the most recent information.