Doi Khun Tan National Park
| Doi Khun Than National Park | |
|---|---|
At Doi Khun Tan peak | |
| Location | Thailand |
| Nearest city | Lampang |
| Coordinates | 18°28′15″N 99°17′5″E / 18.47083°N 99.28472°E |
| Area | 255 km2 (98 sq mi) |
| Established | 1975 |
Doi Khun Tan National Park (Thai: อุทยานแห่งชาติดอยขุนตาล) straddles the mountainous area of the Khun Tan Range in Lamphun and Lampang Provinces, northern Thailand.
Established in 1975 as Thailand's tenth national park, it is an IUCN Category V protected area measuring 159,556 rai ~ 255 square kilometres (98 sq mi). The park ranges in elevation from 325–1,373 m.
Its best known feature is Thailand's longest railroad tunnel, 1,352 m long.