CheckIn Tech at Chattahoochee Riverkeeper 20th Anniversary GalaGuests were all smiles as they rolled up to the Chattahoochee Riverkeeper 20th Anniversary Gala at InterContinental Buckhead in Atlanta. As we checked-in over 650 guests with our paperless system, guests enjoyed the opening reception, dinner and a silent auction saluting Sally Bethea, the program’s founding director and riverkeeper, who will be retiring at the end of the year.