Phu Sang Waterfall

Huai Pong Pha Waterfall

Pha Daeng Cave

Doi Chom Dao

Pulu Turtle Learning Center, Ban Huak

Topography

        - Adjacent to the Lao People's Democratic Republic, Phu Sang National Park is surrounded by a fold mountains (complex mountain) and located between 440 and 1,548 meters above sea level. Doi Pha Mon summit is its highest point. It is located at an elevation of approximately 1,548 meters above mean sea level. The area is a catchment area of the Lao River, Nam Ngao, Nam Puei, Nam Bong, and Nam Yuan, which supplies water to agricultural areas in Phu Sang, Chiang Kham Districtin Phayao Province, and Thoeng District in Chiang Rai Province
Northern border: Thoeng District in Chiang Rai Province

     Southern boundary: Chiang KhamDistrictin Phayao Province.
     Eastern boundary: Lao People's Democratic Republic
     Western boundary: Phu Sang Minor District in Phayao Province

       The climate can be divided into three seasons.                                                                     
      - Rainy season is from June to September.
      - Winter from October to February.
      - Summer from March to May

       The forest environment in the Phu Sang National Park area can be classified into various forest types according to topographical factors, climate, soil characteristics, and plant characteristics that grow on the following five types
Mixed Deciduous Forest cover approximately 50% of the National Park's land area. Trees include Teak, Ironwood, Burma Padauk, Black Rosewood, Lagerstroemia calyculata Kurz, and Dalbergia dongnaiensiswith ground plants such as bamboos and various grasses like Acacia megaladena Desv and Bauhinia scandens. .
Deciduous Dipterocarp Forest makes up 30% of the National Park's total area and is home to several plant speciessuch as Burma Sal, Burmese Sal, Hairy Keruing, and Dipterocarpus tuberculatus Roxb, as well as various grasses, and ivy species such as Bauhinia scandens, and shrubbery such as Antidesma puncticulatum. 

         Hill Evergreen Forest makes up 10% of the National Park's total area and is home to Fagaceae, Schima wallichii Korth, Manglietia garrettii Craib, and Michelia champacaamong the plant species. Ground plants include the Paco Fern, orchids, ferns, mosses, and Zingiberaceae.
        Dry Evergreen Forest makes up 8% of the National Park's total area and is home to Java Cedar, White Siris, Dipterocarpus turbinatus, Hunteria zeylanica, Hopea odorata, Iron Wood, and Black Rosewood as well as lower ground species such as Bambusa nutans, Dendrocalamus hamiltonii, Cycas pectinata Buch, and members of the ginger and  ivy families, such as Entada rheedii Spreng.

         Coniferous forest (Pine forest) makes up just 2% of the National Park and is home to Merkus Pine (Pinus merkusii Jungh & De Vriese), Khasiya Pine (Pinus kesiya Royle ex Gordon), as well as various grasses on the ground. There are numerous species of wildlife in Phu Sang National Park, including Serow, deerIndian Muntjac, Wild Boar, Monkeys, Lemurs, Gibbons, Langur, Mouse Deer, Dhole, Red Junglefowl, Pheasants, Squirrels, Common Palm Civet, Northern Treeshrew, and vover 150 species of birds and reptiles, including the Clouded Monitor, Siamese Large-Headed Terrapin,  and numerous snakes. The Siamese Large-Headed Terrapin has been designated as the park's symbol.