Wiang National Park is a National Park to find sai's first province. With an area covering long Wang district Phrae province and Amphoe Thoen, amphur Mae Tha, Lampang SOP prap. There is a wild mountain complex conditions. And many waterfalls, such as the Royal koeng Mae. Koeng Mae Noi and Mae Chok, which is a mineral hot spring water sources as well as Habitat approximately 410 square kilometers or 256250 Rai announced the establishment to "wiang find sai National Park." When October 9, 1981
Geography
Steep mountain terrain characteristics. The average slope of about 80 degrees the highest point from sea level altitude of 1267 meters from sea level, with an average of about 800 meters, covered with jungle warfare and bayetphan forest is lush green mountains. There is a steep cliff complex is the birthplace of many such as mother Mae Lam Chok koeng Mae loans. Mother, aunt and a sandstone mountain soil resulting from the decay of soil contamination, sand mountain is Ron. There is a painting of the gallbladder area, there is mountain plain lateritic soil with average fertility is very good.