Volunteers Volunteers are always appreciated at the Mill Spring Ag Center and we hold various work days throughout the year but also appreciate schoolgroups, church groups, and more who want to spend an afternoon getting things done! If you are interested, please contact Patrick at patrick@polkcountyfarms.org or at 828-436-0029. Internships Through a grant from the Polk County Community Foundation we are excited to offer a Summer 2015 internship for two Polk County High School Students. Polk Intern Application 2015 Jobs No available positions at this time.