Here's an interesting article from the local newspaper about the event and its international range of participants.
The event schedule is as follows:
Wednesday, July 21, 9 a.m. to 5 p.m.: The USEA Spalding Labs Young Event Horse Series gives owners and breeders the opportunity to showcase the potential of their four- and five-year-old horses. The USEA Future Event Horse Series focuses on yearlings, two-year-olds, and three-year-olds.
Thursday, July 22, 8 a.m. to 5 p.m.: Dressage, all Fédération Equestre Internationale levels. Dressage, National Horse Trial Levels.
Friday, July 23, 8 a.m. to 5 p.m.: Dressage, all FEI Levels. National Horse Trial Levels Dressage continues. Cross-country phase begins at 8 am. National Horse Trials Novice and Training Levels.
Saturday, July 24, 8 a.m. to 5 p.m.: Cross-country phase all day. All FEI Levels. National Horse Trial Levels continue.
Sunday, July 25, 8 a.m. to 5 p.m.: Show jumping phase, all levels. Awards ceremony at end of each division.