One of the best Farmers Markets I've ever been to is Boulder's, the largest in Colorado. The Market focuses on locally grown vegetables, fruit, meats, flowers and wines, sold by the farmers that actually produce them. There's also great selection of prepared and cooked food you can enjoy right at the market from local bakers and restaurateurs. This market definitely focuses on food, with very few if any crafts for sale, a noteable difference from many of the Farmers Markets I patronized in Colorado.
The Boulder Market began in 1987 and has expanded over the years to include a second site (Longmont). There are over 150 vendor participants. The Market is held Wednesday evenings and Saturday mornings.
The following photos reflect what was available in Colorado the first Saturday in September.