Prehistory of Kangleipak
Nongpok Keithelmanbi - Discovered the stone culture in 1982-1984, the Nongpok Keithelmanbi is an archeological site of Paleolithic period and post Paleolithic period (Mesolithic period). The exploration site was classified into Locality-1 (Mesolithic), Locality-2 (Paleolithic) and Locality-3 (Paleolithic). The site is estimated to be of Upper or Late Paleolithic period. Most artifacts are made of Quartzitic sandstone pebbles and few of chert.