Drive far enough into the Gulf country south-east of Darwin and the horizon starts to grow towers. Red sandstone pillars rise in dense ranks from the savanna, packed close enough to look like the skyline of an abandoned city — which is exactly what people have called them. The 'Lost Cities' of Limmen National Park are not ruins. They are stone, and they are unimaginably old: sand laid down on the floor of an ancient sea some 1,500 million years ago, compacted into rock, lifted up, cracked, and then carved by wind and rain over a span of time the human mind can barely hold. To walk among them is to walk through the slow work of deep time, made suddenly visible.
There are two of these formations, the Southern Lost City and the Western Lost City, each a maze of weathered columns rising from the scrub. The geology behind them reads like a story told in eras. Sediment settled on a Proterozoic seabed. Pressure turned it to sandstone. Tectonic forces hauled the slab out of the ocean and split it with a grid of fractures. Then erosion got to work on the gaps, widening cracks into chasms and leaving the deep-red pillars standing between them. The result is a landscape that feels designed and is in fact entirely accidental — the patient subtraction of everything that wasn't a tower.
In 2017 a survey team — archaeologists, anthropologists, and Marra Traditional Owners and park rangers working together — recorded something at a rock shelter called Yilbilinji that exists in only two other places on the planet. Aboriginal stencil art is usually life-size, made by spraying pigment around a real hand, a real boomerang, a real foot. The 17 images at Yilbilinji are miniatures: tiny human figures, crabs, long-necked turtles, kangaroo paws, boomerangs, wavy lines and geometric shapes, far too small to have been made from any body part. Researchers later showed how it was likely done — by heating and shaping beeswax into little forms and stencilling around those. The only comparable sites are at Nielson's Creek in New South Wales and Kisar Island in Indonesia.
Limmen is more than its stone. The park takes its name from the Limmen Bight River, one of several big waterways — among them the Roper and the Towns — that thread the wetlands and run to the Gulf. For anglers these rivers are legendary: barramundi, mud crabs and prawns draw self-reliant travellers deep into the bush each dry season. But the same water that holds the fish holds something else. Saltwater crocodiles are prevalent through the park's rivers and estuaries, and the rule here is absolute and unromantic — do not swim, anywhere. The big reptiles are not an attraction to seek out. They are the resident landlords of every promising-looking pool.
At roughly 9,369 square kilometres, Limmen is among the largest national parks in the Northern Territory. The park spans the country of several Traditional Owner groups — the Garawa, Mara, Wandarang, Alawa, and Ngalakan peoples among them — whose ties to these lands and waterways predate any government boundary. It was announced in 2012, but not without a fight over what to leave out. Around a fifth of the originally planned area was excised so that iron ore could be mined, a carve-out welcomed by Western Desert Resources, then developing a mine in the excluded ground. The Northern Territory Environment Centre accused the government of being 'unnecessarily generous to miners,' and pastoralists and anglers objected to a haul road cut across the country. The mine's own story turned out to be unstable: the company collapsed in 2014 when iron ore prices fell, and in 2018 a new operator was approved to restart it — a reminder that out here, conservation and extraction share the same map, and not always peacefully.
Limmen National Park spans the Gulf country around 15.04°S, 135.14°E, about 600 km south-east of Darwin. From altitude the standout features are the clustered sandstone 'Lost City' formations casting long shadows across the savanna, and the dark, meandering lines of the Limmen Bight, Roper and Towns rivers spreading into coastal wetlands as they near the Gulf of Carpentaria. There are no major airports nearby; the closest aerodromes are small Gulf-region strips such as Borroloola (ICAO YBRL) to the south-east and remote station airfields. Best flown in the dry season (May–September) for clear air and the low, raking light that makes the sandstone towers stand out; the wet season brings flooding, storms and impassable tracks below.