John Dee's 1580 map was modelled after the one by Mercator in 1569, but with the addition of details perhaps from Spanish or Portuguese sources, and the inclusion of Meta Incognita. Inexplicably, Dee presented two different locations for Meta Incognita. The northern one was based on data from Frobisher's explorations, while the southern version was taken from Mercator's map.
In 1582, Dee produced a polar chart which he dedicated to Sir Humphrey Gilbert. It shows the northern lands of America, Eurasia and the polar islands with the waterways which could link them for trade. It too has both placements, southern and northern, of Meta Incognita. The 1582 map also shows two inland water routes to the South Seas, via the St. Lawrence River.
Michael Lok also produced a polar map in 1582 (based partly on Verrazzano's of 1529), published by Richard Hakluyt; it showed the location of Meta Incognita, although the central focus was northeastern North America. This map was designed to attract investors in Gilbert's plan to colonize that part of the world, and to encourage further search for a passage to the Pacific. It is a simplified view of North America; omission of the northwest part of the continent was intended to imply ease of access to the South Seas. Lok's map provided a simplified version of the Meta Incognita region, based on the 1578 Beare-Best map. In his version, however, Lok increased the size of the island named after him and reduced the significance of Meta Incognita.
The Stockholm Chart is believed to have been produced by Englishman James Hall sometime between 1587 and 1605. He was leader of an expedition organized to rediscover Greenland for the Danish king. It accurately located Meta Incognita in relationship to the surrounding lands.
After these maps were produced, a major mapping failure occurred, due to the suppression of accurate information about the location of Meta Incognita. Frobisher's Strait and places associated with it were moved southeast from Baffin Island to the south end of Greenland. This displacement was not corrected for two centuries.