In a press release dated 24 September 2021, the Government of Gibraltar said archaeologists from the Gibraltar National Museum had discovered a large chamber at the very back of Vanguard Cave. The release describes a 13-metre chamber on the very roof of the cave that "had been sealed for at least 40 thousand years".

Map showing where Vanguard Cave is
Vanguard Cave, Gibraltar, United Kingdom

A chamber behind the sand

Vanguard Cave sits in the Gorham's Cave Complex World Heritage Site, a designation Futura-Sciences says was granted in 2016. According to the press release, it "has lived in the shadow" of its sister cave, Gorham's Cave. The release says Vanguard was first excavated in 1997 and that a project began in 2012 to find out whether the cave had passages and chambers plugged by later sediment. It says the archaeologists made the discovery "several weeks" before the announcement, nine years into that project.

The Rock of Gibraltar seen from across the bay
The Rock of Gibraltar.

The government describes the investigation as preliminary. It calls the first finds "initial surface finds": remains of lynx, hyaena and Griffon Vulture, and scratch marks on the walls "produced by a carnivore as yet to be identified". The release also reports a large whelk that "must have been transported up to the chamber", which it says is well away from the coast even today, and evidence of ancient earthquakes.

Futura-Sciences, in an article published on 25 October 2026, adds that researchers have suggested a prehistoric human visitor may have carried the shell there. It stresses that the shell alone cannot show who moved it or why.

Minister John Cortes commented on the find in the release: "these are exciting finds that open a new chapter of our rich history. Knowing Vanguard cave well, I often wondered what might lie behind the sands. Now we are beginning to get a first glimpse". The government said work in the chamber would continue.

What the chamber is not, yet

It would be easy to set "40,000 years" beside the cave complex's Neanderthal history and assume the chamber holds Neanderthal remains. The government release lists no human remains of any kind. Futura-Sciences says the chamber has not yielded identified Neanderthal skeletal remains, and that it does not establish when the last Neanderthals disappeared.

Futura also reports that a Neanderthal child's milk tooth was recovered from another part of Vanguard Cave in 2017, in a deposit dated to roughly 50,000 years ago, in a context that may have been a spotted-hyena den. It says the idea that hyenas brought the remains into the cave is hypothetical. Futura's own point is the right one: the tooth came from elsewhere in the cave, not from the new chamber.

The argument the cave sits inside

Futura says the Gibraltar caves have become central to debates about the disappearance of Neanderthals because they preserve evidence of life in one of Europe's southernmost regions during the late Pleistocene. Futura recounts that a 2006 study in Nature proposed Neanderthals survived in Gibraltar until about 28,000 radiocarbon years before present, and that later analyses discussed occupation to around 24,000 radiocarbon years before present. It adds that these late dates have been challenged: some researchers argue the archaeological context and the variability of the radiocarbon measurements don't give strong enough evidence for such late survival. The chronology of the last Neanderthals in Gibraltar remains debated.

My view

A sealed chamber is exactly the sort of find that invites big claims, and apart from the minister's enthusiasm, the announcement stuck mostly to what had been seen. It gave a size, a minimum age, a short list of animal remains and a marine shell that had to get there somehow. Those are the facts to hold onto. How the chamber was used, by what, and whether it will shed any light on the Neanderthal dating dispute remain open.

Sources

Futura Team (2026) 'Sealed by sand for about 40,000 years, this chamber in a Gibraltar cave held the remains of lynx, hyenas and vultures', Futura-Sciences, 25 October 2026, available at: https://www.futura-sciences.com/en/sealed-by-sand-for-about-40000-years-this-chamber-in-a-gibraltar-cave-held-the-remains-of-lynx-hyenas-and-vultures_901710/ (Accessed: 26 October 2026).

Government of Gibraltar (2021) 'Recent discovery at Vanguard Cave - 676/2021', Government of Gibraltar, 24 September 2021, available at: https://www.gibraltar.gov.gi/press-releases/recent-discovery-at-vanguard-cave-6762021-7253 (Accessed: 26 October 2026).

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