Arthropods Educational Walk at Brown's Ranch Trailhead Spiders, scorpions, bees, and wasps are just the beginning – there are more species of arthropods in the world than any other group of animals. Join us to discover the fascinating and diverse world of arthropods and their role in the ecology of the Sonoran Desert. Location: Brown’s

Mountain Bike Skills Clinic at Pima Dynamite Trailhead New to mountain biking? Looking to refresh your skills, improve your technique, enhance safety awareness and increase your overall enjoyment on the trails? Then come prepared with a mountain bike with knobby tires, helmet, water, and snacks. We begin with a demonstration and presentation by experienced riders