A Unique Food and Wine Tasting Event – Stroll, Sip, Sample, Shop! Hosted by the Grass Valley Downtown Association, the Foothills Celebration event has continued to grow in popularity each and every year. Sample chef specialties and delectable sweets from some of the areas finest restaurants and confectioners while you sip fine wine from over 20 foothill wineries and stroll through the streets of historic downtown Grass Valley.