Synonyms to jumping off place

China, Darkest Africa, God knows where, Greenland, North Pole, Outer Mongolia, Pago Pago, Pillars of Hercules, Siberia, South Pole, Thule, Tierra del Fuego, Timbuktu, Ultima Thule, Yukon, antipodes, bitter end, bottom dollar, boundary, butt, butt end, extreme, extremity, fag end, farthest bound, frontier, godforsaken place, hick town, hoosier town, jerkwater town, limit, nib, nowhere, one-horse town, outback, outer space, outpost, outskirts, point, pole, rube town, station, stub, stump, tag, tag end, tail, tail end, tank town, the Great Divide, the South Seas, the boondocks, the moon, the sticks, the tullies, tip, whistle-stop