Profile
David Henderson
11
points total
11
achievement points total
0
points this month
0
points this week
Data are updated once per day
Achievements in historical mapping
Recognizing your contribution to bringing historical maps to life.
Map Initiate
1 GCP total
Next achievements in historical mapping
Continue georeferencing to unlock your upcoming achievements.
Weekly Mapper
1+ GCP in a week
Monthly Explorer
1+ GCP in a month
Map Apprentice
22%
50 GCP total
Contributed to
David Rumsey
11 points
Last edited maps
