Overview
Chiang Rai is one of Thailand's seventy-six provinces, which lies in upper northern Thailand and is Thailand's northernmost province. It is bordered by the Shan State of Myanmar to the north, Bokeo province of Laos to the east, Phayao to the south, Lampang to the southwest, and Chiang Mai to the west. The provinces is linked to Houayxay Laos by the Fourth Thai–Lao Friendship Bridge that spans the Mekong.
Geography
The average elevation of the province is . The north of the province is part of the so-called Golden Triangle, where the borders of Thailand, Laos and Burma converge, an area which prior to the rise of agricultural production of coffee, pineapple, coconuts, and banana plantations, was unsafe because of drug smuggling across the borders. The Mekong River forms the boundary with Laos, the Mae Sai and Ruak River with Burma. Through the town of Chiang Rai itself, flows the "Mae Kok" Kok River and south of it the Lao River, a tributary of the Kok.
While the eastern part of the province is characterized by relatively flat river plains, the northern and western part consists of the hilly terrain of the Thai highlands with the Khun Tan Range and the Phi Pan Nam Range in the west and the Daen Lao Range in the north. While not the highest elevation of the province, the high Doi Tung (Flag Hill) is the most important terrain feature. Wat Phra That Doi Chom Thong wat on top of the hill, according to the chronicles, dates back to the year 911. Nearby is Doi Tung Royal Villa, former residence of the late princess mother Somdej Phra Srinagarindra (mother of King Rama IX). Thanks to her activities the hills were reforested, and the hill tribes diverted from growing opium poppies to other crops including coffee, bananas, coconuts, and pineapples. The total forest area is or 39.9 percent of provincial area.
National parks
There are seven national parks, along with one other national park, make up region 15 of Thailand's protected areas.
Doi Luang National Park,
Lam Nam Kok National Park,
Mae Puem National Park,
Phu Sang National Park,
Khun Chae National Park,
Phu Chi Fa National Park,
Tham Luang–Khun Nam Nang Non National Park,
From Wikipedia (CC BY-SA 4.0).