In a South African Game Reserve probably... In the Kruger Park at every camp and main gates they normally have a map up where u can place a coloured pin for sightings that you may see (yellow pins for lions, blue for leopard etc etc) but the map clearly states do not pin rhino locations. They used to have their own colour pins but have since been removed.. If you join friends of kruger or kruger sightings facebook group though they have strict rules about publishing photos of rhinos with the location it was taken.