That's a stop-off point on a trip from the coast before the final leg into Alice Springs. I camped overnight (on my own!) in the area when doing the same in 1984. I went Cairns - Karumba, Karumba - Mt Isa, Mt Isa - Tennant Creek (area), Tennant Creek - Alice. BTW, Quite often in remote areas people will use a town name because that's the nearest one or better known.That's interesting. The Barkly Hwy starts at Tennant Creek and goes through to Cloncurry and you can keep going on the Flinders Hwy to Townsville. I guess it's logical that most people coming into the NT from QLD (and especially Townsville) would do it by this route. I guess the question, if all or some of those are sinister, is why Tennant Creek? Do we have a serial killer(s) in Tennant Creek or do we maybe have a killer(s) stalking the Stuart Hwy and Tennant Creek is the best spot to pick up victims?
I guess when you think about it Tennant Creek would be a good option for a weirdo wanting to abduct people. Darwin's the capital, Alice Springs and Katherine are larger than Tennant Creek. Tennant Creek is smaller, less resourced from a police perspective, is at the junction of a major highway where tourists might be coming for the wet season and is surrounded by miles and miles of nothingness where you could dispose of evidence