Sierra Design Signs is a custom sign and graphics shop located in Spearfish, South Dakota. We service the Black Hills and surrounding areas, including: Wyoming, North Dakota, & Nebraska. Our in-house sign experts can create any type of sign you need, whether it is a small directional sign, vinyl logo for a vehicle, or a full-color 100-foot banner. Not only do we specialize in signage, but promotional products as well. We have been in the business for over 18 years. We have over 65,000 fonts available to use and over 75 colors of vinyl in stock. Our service is quick, dependable and affordable. Our custom signs, banners and vehicle advertising have graced corporate events, golf tournaments, fundraisers, and music videos.