Complex sentence: It is situated in the upper part of the Longyear Valley, about uphill from the centre of Longyearbyen and was founded in 1946-47 for the miners of "mine 2B" (one of the area's many coal mines).
Split into simpler sentences: It is situated in the upper part of the Longyear Valley, about uphill from the centre of Longyearbyen. The settlement was founded in 1946-47 for the miners of "mine 2B" (one of the area's many coal mines).