The map printed as part of Part II of Gulliver's Travels appears to indicate that Brobdingnag is located on the northwest coast of California. In the book Gulliver describes how the ship reached a latitude of five degrees south, northward of Madagascar before it is blown by strong winds "a little to the east of the Molucca Islands, and about three degrees northwards of the line [equator]. From there the ship is driven by a storm "about five hundred leagues to the east". Lemuel Gulliver claims to have discovered the land in 1703.
Brobdingnag is a continent-sized peninsula six thousand miles long and three thousand miles wide, which based on the latitude and longitude given by Gulliver just before he shipwrecks there, would suggests it covers all of Alaska, the Yukon, the Bering Sea, and a small section of eastern Siberia. Brobdingnag has a range of volcanoes up to 30 miles (48 km) high separates the country from unknown land to the northeast, and Brobdingnagians have never been able to develop ocean-going ships. Lorbrulgrud is claimed to be the capital with the king having a seaside palace at Flanflasnic.