The results of a great #topography lesson taught by Mr. Dubois. @SMS_Bolton @BTomasiGay @mmuusdvt https://t.co/VHnYnVm8KO

The results of a great #topography lesson taught by Mr. Dubois. @SMS_Bolton @BTomasiGay @mmuusdvt https://t.co/VHnYnVm8KO (via Twitter http://twitter.com/StevenMenz/status/1215709326276472833)