ABOVE: The map above of the rapidly developing S Sabah-N Kalimantan border region shows the  area of a joint  WWF Sabah and WWF Indonesia  Heart of Borneo project to investigate cross-border elephant migration. The purpose is to make recommendations to the local governments  so that any future plantation developments in the area can be mitigated  to protect current elephant migration routes.

288 Sibuda elephants

Suyitno & Wulfraat (2012 The Elephant Groups of East Kalimantan