Paleolithic people formed small groups and maintained a mobile lifestyle. Their camps were established on hillsides or in caves near rivers as they traveled searching for food. They made chipped stone tools by using hammerstones to detach flakes from quartz, quartzite and river stones found near rivers. Early stone tools, such as chopping tools and handaxes, were large and roughly shaped, but they were suitable for breaking and cutting up food resources. In particular, handaxes were carefully shaped around the blade section to achieve a symmetrical form demonstrating the advanced cognitive abilities of humans during the Paleolithic.