If you've been thinking about signing up for a CSA share this year, it's not too late. Many farms still have shares available. CISA has a convenient list of Local Hero CSA farms here. They are listed by county and include descriptions of the farm and typical share contents, pickup locations, and how to get in touch with the farm.
In addition to the meat CSA offered by Bostrom Farm of Greenfield, CISA also lists a few others in the Valley.