At 1,046 meters, the highest elevation in Bangladesh is found at Keokradong, in the southeastern part of the hills.
Fertile valleys lie between the hill lines, which generally run north-south.
West of the Chittagong Hills is a broad plain, cut by rivers draining into the Bay of Bengal, that rises to a final chain of low coastal hills, mostly below 200 meters, that attain a maximum elevation of 350 meters. The CHT are at present inhabited by 13 tribes, each speaking its own distinct dialect. The CHTs have a predominantly agricultural economy. Only a small percentage of the population is engaged in non-agricultural professions. Owing to the subsistence economy, the tribal people, apart from cultivation, are involved in other productive activities to meet their basic needs, other than those connected with food.