Lawton Fort Sill Chamber of Commerce Calendar of Events CartEvent ListingCalendar ViewMonday, July 24, 2017CommunityGNHA PlaydayWhen:from Monday, July 24, 2017 8:00 AMthru Saturday, July 29, 2017 4:00 PMWhere:Grand National Horseman AssociationFor More Info:Great Plains Coliseum580-357-1483 Add to calendar Apple Google Microsoft 365 Outlook (desktop)Calendar ViewBusiness Directory | Chamber Events | Member Account | Community Events | Jobs | Member Promotions | Member News | Request Info