Who is keystone displays? Formed in 1996, Keystone Displays (located just minutes from Harrisburg PA) is a visual marketing company that specializes in trade show events & advertising. With a passion for creativity, we offer unique solutions to every project we approach by providing an 'outside the box' view on the challenges that are brought to the table.How do i contact keystone golf resort? [email protected]. Keystone Resort Mailing Address. PO Box 38. Keystone, CO 80435. Phone: ( 970) 496-4000. Email: [email protected]. *PLEASE NOTE: This email is not for lodging information, reservations, or cancellations.What is keystones customer service team like? A fter a sale is complete, Keystone's customer service team is available to help take care of any issues that may arise. Dedicated staff members in two of our call centers are there to help with the return process, delivery questions, and other issues you may encounter.