Contact Get in Touch The Mainstay is always looking to connect with people who love music. Whether a performer, patron or volunteer, we want to meet you. Phone (410) 639-9133 Email info@mainstayrockhall.org Address PO BOX 2385753 N MAIN STREETROCK HALL, MD 21661 Follow Us Facebook Youtube Send a Message Please enable JavaScript in your browser to complete this form.Name *FirstLastEmail *Paragraph Text *WebsiteSend