Si Lanna National Park

Si Lanna National Park () is a national park in Chiang Mai Province, Thailand. Home to waterfalls, caves and springs, this mountainous park is the source of numerous tributaries of the Ping River.
Geography.
Si Lanna National Park is located about north of Chiang Mai in Mae Taeng, Chiang Dao and Phrao districts. The park's area is . The highest point is Doi Chom Hot peak at . The Mae Ngat Somboon Chon Reservoir lies within the park.
History.
On 1 August 1989, Si Lanna was designated Thailand's 60th National Park. This national park is home to hill tribes including Karen and Lahu.
Attractions.
Mon Hin Lai Waterfall is a nine-tiered waterfall located in the Mae Ngat Forest. Other waterfalls include Huai Mae Rangong and Huai Pa Phlu. The Nong Pha cave system features stalactites and stalagmites.
Flora and fauna.
The park's rugged terrain features numerous forest types: mixed deciduous, moist evergreen, hill evergreen and dipterocarp. Tree species include "Anisoptera costata" ("krabak"), teak, "Toona ciliata", "Hopea odorata", "Xylia kerrii", "Shorea obtusa" and "Shorea siamensis".
Animal species include tiger, serow, barking deer and wild boar.Bird life includes little egret and lesser whistling-duck.