South Dakota experiment finds unusual particle interaction that researchers say could be their best hint yet of the elusive substance

Commissioners cut $1.7 million from building plans, drop a Western Avenue roundabout and freeze their own salaries

Sharp, snappy and South Dakotan — an anonymous shot of insight with a twist of sarcasm

City, Summit League, local artist collaborate with hundreds of students to design backboard art for basketball courts at 11 Sioux Falls parks

Federal aid follows storms that brought 131 mph winds, widespread damage to Highmore, Beadle counties