Cát Tiên Biosphere Reserve was recognized by UNESCO in 2001.

[1] In 2011, it was expanded and renamed as Đồng Nai Biosphere Reserve.

[2] It covers an area of 966,563 hectares, with territories belonging to 5 provinces of Đồng Nai, Bình Dương, Bình Phước, Lâm Đồng and Đắk Nông.

It is the largest biodiversity conservation area in the Southeast of Vietnam.

[3][4] Its core area is 172,502 hectares, including Cát Tiên National Park and Đồng Nai Nature-Cultural Conservation Area.