UPCOMING EVENTS SEE ALL The Hill Boulder Merchants Association Share: Non-Profit Organizations The Hill Boulder Merchants Association Visit Website Request Info 1219 Pennsylvania Ave The Hill Boulder Merchants Association Boulder, CO 80302 (734) 756-0613 About Map About We promote business, arts, culture and community on The Hill, Boulder's historic commercial and student district. What's Nearby? Distance: 5 10 15 20 25 50 mi.