You pay resident prices for South Dakota hunting and fishing licences if you are stationed in South Dakota, and so does your spouse. Veterans who are patients at a veterans hospital in South Dakota also pay resident prices.
Buy your licence from South Dakota Game, Fish and Parks and show your orders or hospital documentation to claim the resident price.
Your orders assigning you to South Dakota and your military ID, proof of marriage if you are the spouse, or documentation that you are a patient at a veterans hospital in South Dakota.