MicroNet Template HDR Engineering, Inc. Categories Engineers 703 Main St., Ste. 200 Rapid City SD 57701-2788 (605) 791-6100 Visit Website Rep/Contact Info Pat Chatterton × Pat Chatterton Phone: (605) 791-6100 Send an Email Ellen Erickson × Ellen Erickson Send an Email Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×