The Thamphathai National Park covers the areas of Muang District, Jae Hom District, Ngao District of Lampang Province. The topography of the National Park consist of high mountains, abundant timber forests and mixed deciduous forests, as well as teak plantations spreading all over the areas. The National Park is the dwelling place for a large number of wild animals. Most of the areas are water sources. Major tourist attractions include Thamphathai, Lom Phukeaw, Kewlom Reservoir, Tham-okroo, Huay Maepreung. Moreover, there are many small-sized waterfalls all over the National Park, as well as the Young Elephant Training Center, a tourist attraction of the Forest Industry Organization, situated in the approximate area of 1,284.9 square kilometers or 802,436.17 rai.
The topography of the National Park consist of high mountains, mixed forests, teak plantations and reclaimed areas. Major mountaintops include Doi Kewlom (1,202 meters high), followed by Doi Sanklang (1,022 meters high), Doi Phahuad (975 meters high). Most of the areas are timber forests and mixed forests. Doi Luang (1,100 meters high) is situated in the southern part of the National Park. Major agricultural sites are situated in the eastern part of the National Park, meanwhile, in the western part of the National Park, most of the areas are timber forests. Gullies and streams in the western part of the National Park flow into Wang River, meanwhile, most of the gullies and streams in the eastern part of the National Park flow into Ngao River.