much of the landscape the fore reside on is untouched forest. areas of grassland or clearings in the forest appear only in locations of present or past agricultural cultivation. the settlements of the fore people, usually consisting of a cluster of larger buildings, occur near tracts of land cleared for cultivation, and are frequently demolished and rebuild elsewhere as new land is acquired for cultivation. these reside almost exclusively on mountainsides, with the majority of fore hamlets being established between 4,500 and 7,000 ft above sea level (compared to valleys which descend close to 1,000 ft above sea level). the lamari and yani rivers are the two largest in the fore region. both are tributaries to the larger purari river to the south.