Nenetsia is a far flung region in Northwestern Russia on the Barents Sea, which borders Arkhangelsk Oblast to the southwest, Komi Republic to the south, and Yamalia to the east. The region includes the relatively large Arctic island archipelago Severnaya Zemlya.
Nenetsia is named for its native Nenets people, who lived off the land in the tundra and forests of the region until most were forced into Soviet collectivization programs, resulting in a significant loss of native traditions. Today, the region is vast, very sparsely populated, an important center of Russian gas and oil exploration and extraction, and, yes, cold. Nearly the entire region lies to the north of the Arctic Circle. The principal riverway of the region is the northwards flowing Pechorin River, which leads into the region from the Komi Republic and leads to the capital, Naryan-Mar, before terminating in the Barents Sea.
Some knowledge of Russian is pretty much requisite here, unless you have a guide. The Nenets Language shares official status with Russian within Nenetsia, and may be useful only if staying in a small, remote Nenets village. And if you do find yourself in such a village, chances are good you do speak Nenets!
Getting around in Nenetsia is particularly difficult due to the lack of roads. The principal means of transport is by boat on the Pechorin River and on the seas to the north, but ship traffic is closed most of the year, only running from mid-July to mid-October.