Log Day 63 021027 Groundhog robot maps a breached entry of the abandoned Florence Mine of the Harmon Creek Coal Corporation. Ferret robot maps an unrecorded void that exists under the entry steps to CMU’s Mellon Institute building along Fifth Avenue Preparations proceed for the Charleston Symposium on mine mapping and coalmine safety. Accomplishments, images, data and maps are astonishing. It is a good Sunday in robot land.