1. Topographic map scale 1 : 50,000 containing information such as administrative
boundaries, contours, river and stream network, road network, location of villages from the
Royal Thai Survey Department
2. SPOT-5 imagery to generate land use map, of Mae Yom National Park, Lampang and
Phrae Provinces dated 12/05/2006 and 18/02/2007
3. Contour map, scale 1 : 50,000 with 20 meters interval from the Royal Thai
Survey Department
4. Dem at scale 1 : 50,000, generate from contour map