Oak Lake Field Station Po Box 2207b Brookings, SD 57007 Phone : (605) 832-2981 Business Category Nonclassifiable Establishments South Dakota State University And Related Listings--for General Information Dial, Oak Lake Field Admin, Directors, Office Astoria, SD 57213 Phone : (605) 832-2981 Business Category Administration Of Educational Programs Oak Lake Field Station Astoria, SD 57213 Phone : (605) 832-2981 Business Category