It was closed out in July 1970 after its topographic surveying mission in Ethiopia was complete .
The Ethiopia - U.S. Mapping Mission was activated in July 1963 and during its lifespan involved about a thousand U.S. military and civilian personnel .
U.S. Mapping Mission was closed out in July 1970 after U.S. Mapping Mission 's topographic surveying mission in Ethiopia was complete .
The Ethiopia - U.S. Mapping Mission was activated in July 1963 and during its lifespan involved about a thousand U.S. military and civilian personnel .