Mons Andreas Petersen, best known as Mons Petter (sometimes Mons Peter; April 6, 1829 – November 16, 1886), was a Norwegian Sami farmer that discovered ore deposits in Sulitjelma in 1858.Store norske leksikon: Sulitjelma Gruber.

Mons Petter was a Sami farmer from the Skognes farm in Lakså along the shore of Øvervatnet () in what is now Fauske Municipality (at that time it was part of the parish of Skjerstad).Kristiansen, Ivar. 1987. Da skjerpetiden begynte i Sulitjelma. Fauskeboka 1987. Fauske: Fauske Kulturstyre.Enge, Kåre. 1991. Han Mons Petter. Fauskeboka 1991, p. 43. Fauske: Fauske Kulturstyre.Anfindsen, Anfind. 1914. En beskrivelse om Sulitjemadalens kolonisering og Sulitjelma Grubers tilbliven. Sulitjelma historielag. In the summers, he used to haul timber out from the pine forests of the area around the lake Langvatnet () about to the southeast. He had noticed veins of rust in the mountains. In 1858, he found ore there that he thought was gold. He took his find to the merchant Bernhard Koch in Venset, who determined that it was not gold based on its weight.Spjelkavik, Andreas. Historier og tanker fra Sjønstu og Sjønstudalen. Sulitjelma historielag. In fact, he had found chalcopyrite (a golden yellow copper ore) and pyrite (fool's gold).

The discovery led to the establishment of Sulitjelma Mines (), which began operations in 1891.

The Mons Petter Festival is held annually in Sulitjelma in late June to celebrate the area's mining history.Ansari, Nuha E. 2004. Fodor's Scandinavia. New York: Fodor's, p. 484.Dølmo, Ida Kristin. 2016. Mons Petter består. an.no (April 21).

References

External links Mons Petter Festival