Denny Sanford is donating 20 million dollars to University of South Dakota.

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VERMILLION, SD (KELO.com) — Denny Sanford is donating 20 million dollars to build a new indoor track and field facility at University of South Dakota.  It’s the largest donation in USD history.  The new Gassen Family fieldhouse will provide a state-of-the-art space to help turn the Dakota Dome into a full-time turf facility.