Significant amounts of artefacts of the Magdalenian (c. 16'000 to 14'000 years ago) have been excavated near Olten. There are also finds dated to the Mesolithic and Neolithic, but there is no trace of a settlement, … See more

Olten has an area, as of 2009 , of 11.49 square kilometres (4.44 sq mi). Of this area, 1.46 square kilometres (0.56 sq mi) or 12.7% is used for agricultural purposes, while 4.81 square kilometres (1.86 sq mi) or 41.9% is fo… See more

The blazon of the municipal coat of arms is Argent three Fir Trees Vert trunked Gules issuant from a Mount of 3 Coupeaux of the second. See more