The name is a hybrid, and reading it takes two languages. The first part comes from the Southern Sami *jitneme*, meaning an area covered with snow. The second is the Norwegian *klump* — a clump, a round mountain, the word you would use for a lump of something. Put together it is the snow-covered round mountain, which is exactly what it is: a broad dome rather than a spire, without the drama of a horn or an arête. In Southern Sami the peak is Jitnemensnuhkie. The doubling is typical of this border country, where Norwegian and Sami names have sat on top of each other on the same maps for generations, each describing the same rock from a different direction of travel.

Walk about six kilometres east along the broad back of Jetnamsfjellet and the ground drops to 1,206 metres — and does something almost nowhere else does. At international boundary marker number 204, at 65°7′8″N and 14°19′33″E, the Norway–Sweden frontier is crossed by two internal boundaries at once. Trøndelag and Nordland meet on the Norwegian side; Jämtland and Västerbotten meet on the Swedish. Four provinces of two countries touch at a single point on an unremarkable stretch of bare fell. There is no visitor centre, no viewing platform, no interpretive sign. There is a numbered border cairn, wind, and rock, and the fact that a bureaucratic coincidence of this kind exists at all is the only thing marking it.

The bedrock is granitic gneiss, with bands of mica gneiss appearing at the foot of the mountain on its northern and southern sides. That composition explains the terrain more than the elevation does. Acidic rock of this kind weathers into vast fields of loose blocks, and Børgefjell is famous among Norwegian walkers for exactly that — kilometre after kilometre of ankle-testing boulder, where progress is measured in careful steps rather than distance covered. Jetnamsklumpen rises 675 metres above the ground that surrounds it, enough to make it a genuine summit rather than a bump on a plateau. Kvigtinden, the highest peak in Børgefjell at 1,699 metres, stands to the north on the Hattfjelldal–Grane boundary.

The mountains around the summit have their own Southern Sami name — Byrkije — and the park that protects them has grown twice since it was drawn. Børgefjell was established by royal resolution on 9 August 1963, then enlarged in 1973 and again in 2003, and now covers 1,447 square kilometres — about 1,491 counting the adjoining Austre Tiplingen landscape protection area. Most of it is hard, acidic rock and poor soil, but a depression through the centre of the range carries limestone, and there the vegetation changes character entirely — greener, richer, better feeding. Those green pockets are not incidental. They are the reason the reindeer come, and the reason people have followed the reindeer here for as long as anyone can document.

Børgefjell contains no marked trails and no staffed cabins anywhere within its boundary. Norway is a country that has built a hut network across most of its mountains; here it deliberately did not. Anyone climbing Jetnamsklumpen carries their own shelter, reads their own route, and accepts that a twisted ankle in a boulder field is a serious problem rather than an inconvenience. What that emptiness protects is worth the trouble. Arctic foxes den in these fells — one of the few places in Norway where they still do — and the wolverine is the commonest of the large predators. Reindeer graze every part of the park, herded by Southern Sami families who have worked this ground for at least five hundred years, longer than any county line has existed to be abolished.