From the GOF site, GOF Central 2023 will be Jun 20-23, 2023: 

GOF Central 2023 will be in South Bend Indiana, conveniently located for all in the Midwest.  Headquarters is the new Embassy Suites, adjacent to Notre Dame University.  It is easy to get to, and provides the perfect environment for all our activities. 

Check their site at https://www.gof2023.com/ for details.