The Americas were referred to as Nether world,Patala Loka in Hindu Texts, Puranas,Ithihasasa, Ramayana and Mahabharata.

The Americas can be identified through ancient Tamil groups as well.

People of Cameroon speak Tamil, a language of India, even today.

The Nazca Lines of Peru are referred to in the Ramayana, where Sugreeva directs his army of monkeys( they were not monkeys,but an equivalent of Neanderthal,in India) to search for the abducted Sita.

The directions given by Sugreeva in the Kishkinda Lands is a mine of information on ancient geography.

Cooke’s Island,Lake Pukaki, Australia,Fareast Asia, Antarctica,Russia and Arctic are referred clearly,with directions and landmarks.

I have written on these.

There is a Naturally formed Vishnu temple in Colorado.

There is also a quadrilateral temple of Sivathere.

The place where Sage Kapila meditated is the present California.

Near California,one finds Mount Ashes.

This is where Sage Kapila turned the sons of King Sagara,after whom the oceans are named as Sagara( sons of Sagara dug the earth to reach the place), into Ashes.

We find yet another reference in the Kishkinda Kanda about the West.

The text also refers to the motion of the Sun,stating that when Sun rises in the East,it is not visible in the west.

And Japan is also referred to.

It is also worth noting that ancient Indians were aware that the earth is not the center of the universe and that Sun moves across the sky.

‘

uttareNa parikramya ja.mbuu dviipam divaakaraH |
dR^ishyo bhavati bhuuyiSTham shikharam tan mahocChrayam || 4-40-59

59. divaakaraH= day-maker [Sun]; jambuu dviipam uttareNa parikramya= to Jambu Dwiipa, by north, on circling; mahat ucChrayam tat shikharam = zenithal, that, pinnacle; [praapya= on reaching]; bhuuyiSTham dR^ishyaH bhavati = by far, discernable, he will be.

“The Sun is by far discernable in Jambu Dwiipa when he rises on this zenithal pinnacle Saumanasa, after he had circled the Jambu Dwiipa in a northerly route. [4-40-59]

The sunrises in the East on the peak of this Saumanasa which is on the zenith of Udaya Mountain. Then he traverses above Jambu Dwiipa, Indian Subcontinent, including South-East Asia, and sets in the West on the mountains called asta adri, ‘ the Sunset Mountain.’ Then he courses northerly on the other side of the globe via Mt. Meru in heavens at the other side of Jambu Dwiipa, only to rise again on this Mt. Sunrise. As Jambu Dwiipa, the subcontinent lies southerly to that heavenly Mt. Meru, and down East-South of Saumanasa, this subcontinent can happily see the First Sun, daily. This gives raise to the Indian name of India, that is Bhaarata, bhaa rataH Sun, delights…’ The place where the Sun delights firstly, that is Bhaarat…’

A golden pylon resembling a palm tree with three branches as its heads is established on the peak of that mountain as the insignia of that great-souled Ananta, and it will be lustrous with a golden podium. That pylon of palm tree is constructed as the easterly compass by celestials gods, and beyond that a completely golden mountain is there, namely the august Udaya Mountain, the Mt. Sunrise, beyond which it is all west. The pinnacles of Mt. Sunrise will be touching heavens for their height is hundred yojana-s and that divine mountain greatly glitters for it is completely golden, and it is pedestalled with suchlike glittering mountains.

William’s Vishnu Purana states: ‘here is an interesting reference to the physical phenomena of the apparent diurnal motion of the sun, which sets in the west [America, and reappears again in the east jambu dviipa, the central continent, Asia…’

“That Mt. Sunrise will be splendorous with well flowered and beautiful saala, palm, Tamaala, and Karnikaara trees which are completely golden in hue and which will be glittering similar to sun. On the apex of that Mt. Sunrise there is another pinnacle with one yojana width and ten yojana-s height named Saumanasa, which is completely golden and very firm. Earlier while treading the three worlds in the incarnation of Trivikrama, the Supreme Person Vishnu made His first foothold on that pinnacle Saumanasa, and the second on the pinnacle of Mt. Meru to tread the heavens. The Sun is by far discernable in Jambu Dwiipa when he rises on this zenithal pinnacle Saumanasa, after he had circled the Jambu Dwiipa in a northerly route.

The sunrises in the East on the peak of this Saumanasa which is on the zenith of Udaya Mountain. Then he traverses above Jambu Dwiipa, Indian Subcontinent, including South-East Asia, and sets in the West on the mountains called asta adri, ‘ the Sunset Mountain.’ Then he courses northerly on the other side of the globe via Mt. Meru in heavens at the other side of Jambu Dwiipa, only to rise again on this Mt. Sunrise. As Jambu Dwiipa, the subcontinent lies southerly to that heavenly Mt. Meru, and down East-South of Saumanasa, this subcontinent can happily see the First Sun, daily. This gives raise to the Indian name of India, that is Bhaarata, bhaa rataH Sun, delights…’ The place where the Sun delights firstly, that is Bhaarat…’

“There the great-sages with nomenclature of Vaikhanasa-s and Vaalakhilyaa-s will come into view with an ambience of luminosity, for those ascetics will be with the resplendence of the Sun.

Valakhilya-s and Vaikhaanasaa-s are two different groups of ascetics and these sages Vaalakhilyaa-s are sixty thousand in number as said in Vishnu Purana. Their account is given in the opening chapters of Aranya Kanda.

“In the presence of which resplendence the eyes of all living beings will become enlightened, and whereat that illuminating entity of universe, namely the Sun, will be sojourning, this is that Sudarshana Island, named so because it contains Sudarshana lake. On the top of that Mt. Sunrise, and even in its cave and forests of that island Ravana is to be searched, together with Seetha. The eastern aurora glows redly because the golden hue of Mt. Sunrise imbricates the resplendence of the beneficent Sun.

“In the beginning Brahma, the Creator, ordained this Mt. Sunrise to be the gateway for the earth to heaven, and even as the rising place for the Sun, as such this is verily said as the ‘eastern quarter’ of the compass.

Reference and citation.

http://www.valmikiramayan.net/kishkindha/sarga40/kishkindha_40_prose.htm