Doi Angkhang, Fang District is the side of the Royal Agricultural Project, accessible via highway 107, with a left turn at kilometer 137 and then along a steep winding road for another 26 kilometers to the top of the hill. It is here that substitution crops for opium are being grown including fruits, flowers, vegetables and herbs, along with other cash crops grown for the purpose of agricultural development among the hilltribes in the area, including the Luha, Pha-Lhong, Yunnanese and Thai Yai. At Doi Ang Khang visitors can see plants being cultivate in this cooler climate including apricots, peaches, plums, carrots, salad greens and beautiful flowers such as carnations, roses, asters and chrysanthemums.