SURVEYING AND EXPLORING IN SIAM.
THE CHIENG KWANG HIGHLANDS.
Resuming our march, we passed along narrow valleys which had ^ one time yielded plentiful crops of rice ; then crossing a jungle ridg^ we descended into the valley of Chieng Kwang, the capital of ^ beautiful country.
This valley, about half a mile broad, is over 3000 feet above sefl' level, and on each side the mountains rapidly rise to the height 0
PLAIN OF CHIENG KWANG.
another 3000 feet, those to the south being well wooded. The ^l0 6 valley is well adapted for the cultivation of rice, of which as as three crops can be raised annually, the irrigation of the fie requiring scarcely any labour.