Join Anza-Borrego Foundation for a hike up Rainbow Canyon to view a beautiful display of metamorphic rock! Layers of colorful rocks split by stark veins of mineral deposits make for a unique display. The 2.2 mile out and back hike is rated moderate because of a few dry waterfalls that require a bit of rock scrambling. Must be a member to attend. Limit 20 people. Information and registration: www.theabf.org/calendar/december-member-hike-rainbow-canyon/