Hours Of Operations Otter Tail Power Company North Dakota Cooperstown 58425 Otter Tail Power Company Hours of Operation and Location in Cooperstown, ND 58425 4.0 - 129 votes 602 Roberts Ave Nw, Cooperstown, ND 58425 (701) 797-2441 Get Directions Otter Tail Power Company Hours Category: Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore CooperstownView More Apparel DotsAvenue Recommend For You United Power Ferrellgas Toys R Us A Nails A Salon A Therapeutic Touch A Touch of Health A+ Roofing Alcoholics Anonymous Honeywell