When: September 22 - 23 and September 29 - 30
Colorado has a very German influenced history: the 1910 census shows that approximately 10% of the population was German or Austrian at the time.
Denver's Oktoberfest attracts over 350,000 people, and celebrates both the state's ancestry and beer culture with delicious German cuisine, imported Spaten and Franziskaner beer, oompah bands, a bratwurst eating contest, and a stein hoisting championship.