Question: What was named by the person who made detailed maps of Newfoundland?

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Comparison of free off-line GPS software: This article contains a list with gratis (but not necessarily open source) software for a range of devices (PC, laptop, tablet PC, mobile phone, handheld PC (Pocket PC, Palm)).  Some of the free software mentioned here does not have detailed maps (or maps at all) or the ability to follow streets or type in street names (no geocoding).  However, in many cases, it is also that which makes the program free (and sometimes open source), avoid the need of an Internet connection, and make it very lightweight (allowing use on small portable devices, including smartphones).  Very basic programs like this may not be suitable for road navigation in cars, but serve their purpose for navigation while walking or trekking, and for use at sea.  To determine the GPS coordinates of a destination, one can use sites such as GPScoordinates.eu and GPS visualizer.

Gburek Peaks: The Gburek Peaks ( ) are a group of rocky elevations including Straumsvola Mountain and Jutulrora Mountain, forming the western end of the Sverdrup Mountains in Queen Maud Land, Antarctica.  They were discovered by the Third German Antarctic Expedition under Alfred Ritscher, 1938–39, and named for Leo Gburek, geophysicist on the expedition.  The name Gburek is here restricted to the westernmost peaks of those so named on maps of the German Expedition, these being clearly recognizable on detailed maps by the Norwegian–British–Swedish Antarctic Expedition, 1949–52, and subsequent Norwegian expeditions.

List of ships of James Cook: Captain James Cook, FRS, RN (7 November 1728[NB 1] – 14 February 1779) was a British explorer, navigator, cartographer, and captain in the Royal Navy.  Cook made detailed maps of Newfoundland prior to making three voyages to the Pacific Ocean, during which he achieved the first recorded European discovey of eastern Australia, Hawaii and undertook the first circumnavigation of New Zealand.

HMS Grenville (1754): HMS "Grenville, was a schooner built in Marblehead, Massachusetts, and originally named Sally".  The ship was purchased and renamed "Grenville" by England on 7 August 1763 in Newfoundland.  From 1763 to 1767 English surveyor and explorer James Cook was commander of "Grenville", his first independent command.  Each summer season he used the ship to survey the coasts of Newfoundland and Labrador, making detailed maps.  The following year, 1768, he began his first circumnavigation of the world.

Alpine Club map: Alpine Club maps (German: "Alpenvereinskarten" , often abbreviated to "AV-Karten" i.e. AV maps) are specially detailed maps for summer and winter mountain climbers (mountaineers, hikers and ski tourers).  They are predominantly published at a scale of 1:25.000, although some individual sheets have scales of 1:50.000 and 1:100.000.

Endeavour Strait: The Endeavour Strait is a strait running between the Australian mainland Cape York Peninsula and Prince of Wales Island in the extreme south of the Torres Strait, in northern Queensland, Australia.  It was named in 1770 by explorer James Cook, after his own vessel, "The Endeavour", and he used the strait as passage out to the Indian Ocean on his voyage.

Silas Chapman: Silas Chapman (June 9, 1813 - December 14, 1899) was a Milwaukee map and book publisher known primarily for his maps of the upper Midwest, which were influential at a pivotal time of the settlement of that region.  When he arrived in Milwaukee harbor in 1841, there were 2,000 inhabitants, the roads were crude, most of the area was oak prairie, and the towns of the region had not yet been settled.  Within 20 years, with the help of an influx of skilled engravers, especially from Germany, his firm was producing fine detailed maps, many of which became collectors items.  He published 55 different maps during his life.  An 1880s map of Milwaukee sold 100,000 copies, at a time when the population of the city was 150,000.

Emil Fischer (cartographer): Emil B. Fischer (1838 or 1839 in Dresden, Saxony – September 23, 1898 in Silverton, Colorado) published six detailed maps of the San Juan area of southwestern Colorado between 1883 and 1898.  A surveyor’s son, he came to America around 1872.  He moved to Durango in 1880 when the building of the Denver & Rio Grande Railway to the San Juan attracted widespread attention, then to Silverton.  These maps aided silver and gold prospectors to file their claims; they enabled investors to locate mines and view their proximity to famous neighboring mines; and they encouraged tourists to visit the depicted mining regions and invigorate the local economies.

Yandex Maps: Yandex Maps is a russian web mapping service developed by Yandex.  The service provides detailed maps of the whole world.  There is a search on the map, information about traffic jams, routing and street panorams.  The service was launched in 2004.

James Cook: Captain James Cook (7 November 172814 February 1779) was a British explorer, navigator, cartographer, and captain in the Royal Navy.  Cook made detailed maps of Newfoundland prior to making three voyages to the Pacific Ocean, during which he achieved the first recorded European contact with the eastern coastline of Australia and the Hawaiian Islands, and the first recorded circumnavigation of New Zealand.

Supporting paragraphs: Endeavour Strait James Cook
Answer: Endeavour Strait