Memorial Day Ruck March  7 a.m. Saturday America the Beautiful Park, 126 Cimino Drive Join this challenging race and help fight hunger in our community, while supporting local veterans. Participants will complete the 30K while carrying a rucksack weighing 24.25 pounds that is filled with dry nonperishable food that will be donated at the end. Proceeds from the event will support Veterans to Veterans, The Special Forces Foundation and Mt. Carmel Veterans Service Center. Go online for price, location and to register:  coloradochallengeseries.com . View the Surface of the Sun 11 a.m.-noon Saturday Smokey Jack Observatory, 100 S. Adams Blvd, Westcliffe Have you ever wondered what the sun looks like up close? Join Dark Skies of the Wet Mountain Valley to safely enjoy views of sun spots, solar flares and more through hydrogen-alpha and white-light solar telescopes.…