|Khao Khiao Massif|
The Khao Khiao Massif rising east of Chonburi town
|Elevation||789 m (2,589 ft)|
|Length||20 km (12 mi) N/S|
|Width||10 km (6.2 mi) E/W|
|Type of rock||Sandstone, conglomerate|
The Khao Khiao Massif (Thai: เขาเขียว) is a moderately high mountain range near Chonburi, eastern Thailand. This massif has the last substantial forested zone in Chonburi Province, a region that is much affected by urbanization and other forms of human intervention and land degradation.
Khao Khiao is the mountain area closest to Bangkok, rising about 40 km to the southeast of the capital.
The Khao Khiao – Khao Chomphu Wildlife Sanctuary (Thai: เขตรักษาพันธุ์สัตว์ป่าเขาเขียว-เขาชมภู่) is a protected area in the massif. Founded in 1974, it is an IUCN Category IV wildlife sanctuary, measuring 145 km2 in area.