Seeing the comments here I just searched for an alternative article. This has a nice picture of the dormant volcanic cone called El Cono: <a href="https://www.amusingplanet.com/2016/01/sierra-del-divisor-national-park-peru.html" rel="nofollow">https://www.amusingplanet.com/2016/01/sierra-del-divisor-nat...</a>
Not that remote, seems to be less than a 100km away from an airport, a short helicopter ride. Surely someone must have visited the site to figure out what's underneath the vegetation.
Pretty weird article. Just on the title alone:<p>- 'Mysterious': there's very little of substance in the article to advance the position that it is mysterious at all.<p>- 'Sacred': OK, I guess!<p>- 'Pyramid': "A fourth explanation — one for which there is no evidence — is that Cerro El Cono sits on the ruins of a pyramid built by ancient Indigenous tribes". So... no evidence then :)<p>- 'Hidden': "It rises steeply from the relatively flat jungle landscape of eastern Peru, making it visible from as far west as the Andes — 250 miles (400 kilometers) away — on a clear day."