The name did not exist before 1923. On 1 July of that year this territory was cut loose from the very large Grong Municipality, and a name had to be invented for it on the spot: Nams-, from the river Namsen, plus the plural of skog, woods. The woodlands around the Namsen. It began life with 469 inhabitants, and — unusually for a Norwegian municipality, which have been merged and re-merged for a century — its boundaries have never once been redrawn. The one change came on 1 January 2018, when Nord-Trøndelag and Sør-Trøndelag were folded together and Namsskogan found itself in the new county of Trøndelag without having moved an inch. In Southern Sámi the district is Laakesvuemie.

The land here ranks 64th in size among Norwegian municipalities and 345th in population, a mismatch that tells you most of what you need to know. The Namsen runs south through the Namdalen valley, taking the E6 highway and the Nordlandsbanen railway with it; away from that corridor there are big lakes — Kalvvatnet, Frøyningen — and forest that goes on until it stops being forest and becomes mountain. The highest point is Gisen, at 1,167.6 metres. As for the climate, the record books make the case without help: 34.4°C in July 2019, and minus 35.6°C in January 2010. Seventy degrees of range in one small place, and both extremes within living memory.

For thirty-two years this was a mining district. Copper was found near Skorovatn in 1910 and a workable pyrite deposit in 1915, but the Skorovass mine did not open until 1952. It worked a body of roughly ten million tonnes, and until 1976 the ore travelled out on a 45-kilometre aerial cableway to Kongsmoen for shipping — an extraordinary object to picture, buckets of sulphide ore crossing forty-five kilometres of empty forest on wires. The mine closed in May 1984. The company houses passed into private hands, the clubs and choirs folded one by one, and the village that had been built around the shaft now has nineteen residents. Namsskogan's population is 12 per cent lower than it was a decade ago, and Skorovatn is where you can see what that looks like up close.

Two very different exports have come out of these woods recently. One is Lene Cecilia Sparrok, born here in 1997 — a Southern Sámi reindeer herder who was cast as Elle-Marja in the 2016 film Sami Blood, a story about a Sámi girl pushed to disown her own language and family under Sweden's assimilation schooling. She won the Guldbagge for best actress in 2017 and has kept herding alongside the acting, later performing in stage work drawn from Elin Anna Labba's account of the forced relocation of Sámi families. The other export is invisible: in 2024 the municipality earned a few hundred thousand euros selling hydroelectric power to a cryptocurrency mining facility inside its own borders, with a projected 9.3 million kroner for 2025. Falling water, converted first to electricity and then to arithmetic.

The municipal council has thirteen members on four-year terms, and the mayoral roll goes back to Kristian Trones in 1923 and forward through a hundred years of local lists, Liberals and Labour to Elisabeth Vollmo Bjørhusdal, elected in 2023. One entry sits differently from the others: Ole Myrvold, mayor from 1942 to 1945 for Nasjonal Samling, the party that governed for the German occupation. The list keeps him. Politics here has stayed capable of surprising the rest of the country — in the 2007 municipal elections Namsskogan returned the highest vote for the Socialist Left Party anywhere in Norway, 33.6 per cent, which is not the number most people would guess for a forestry district of eight hundred souls.