Sangkhla Buri, Thailand

Sangkhla Buri is the northernmost district of Kanchanaburi province, on the border with Myanmar. Three Pagodas Pass is the border crossing station to Myanmar. Neighboring jurisdictions are (from the west clockwise) Tanintharyi Region, Mon State and Kayin State of Myanmar, Umphang district of Tak province, and Thong Pha Phum district of Kanchanaburi.

A large part of the district is covered by the Khao Laem Reservoir, an artificial lake formed by the Vajiralongkorn Dam on the Khwae Noi River. The northern part of the district is in the area of Thung Yai Naresuan Wildlife Sanctuary, which — together with the adjoining Huai Kha Khaeng Wildlife Sanctuary — constitutes the Western Forest Complex — the largest contiguous protected area in mainland Southeast Asia.