PIERRE, S.D. (AP) — Officials say South Dakota tourism continued growing in 2017, with increases in visitation, visitor spending and overall impact on the state's economy. Tourism marked its eighth consecutive year of economic growth in South Dakota last year. A new study by Tourism Economics finds that visitor spending in South Dakota reached $3.9 billion in 2017, an increase of 1.2 percent from 2016.Read more on NewsOK.com