Your Vitamin and Sports Headquarters.This GNC store is located in Dillon, near City Market, next to Starbucks. Our knowledgeable staff is here to help you achieve your fitness and supplement goals. Come see our monthly sales. Gold Card customers save on every visit to the store. Just ask us for your 20% discount when you visit. If not a GNC Gold Card member, do not worry. You can become a member instantly when you sign up.To reach us, exit Dillon-Silverthorne exit from I-70 and go towards Keystone, and look for sign for City Market and Starbucks on you left hand side.