He is also a Mongolian and knows that the only reliable maps of these parts are in the heads of the herders.

It was not created to be a reliable map but convey a sense of the places that are mediated and mangled.

He had no reason to doubt them, but he hated trying to fix his position without a reliable map.

While in Ko-shu han, he was involved in a surveying project to produce a reliable map of his employer's land.

He was still studying the map, pretending to be anxious because there was no such thing as a reliable map of this area.

His first major task was to produce a reliable topographical map of the interior of the island.

No reliable map of Paris existed until the end of the 18th century.

(This new construction, incidentally, is one reason why no reliable map exists to guide either residents or visitors.)

Despite the planet thick, cloudy atmosphere, we now have reliable maps of almost its entire surface.

These scouts helped provide the first reliable maps drawn in the areas of operation.