Pitkin County government has recently made available a series of topographic maps that boast contours intervals of only two feet — making them about as detailed as those types of maps can be.

Google has announced a new feature to the terrain relief maps they added last November to Google Maps. Now when you zoom in closer, the terrain shows contour lines to give you an even better feel for ...

For all of its natural beauty, San Francisco is a city defined by its human imprint: zigzagging roads, floating bridges, touristy cable cars, and squashed, expensive housing. But in San Francisco ...

This topographical relief map of Shanghai, China was generated using the Geographic Resources Analysis Support System Geographical Information System or GRASS GIS. This system manages, analyzes, and ...

For outdoor lovers, no map is more iconic – or useful – than a USGS topo map. While the concentric, sepia lassos of elevation are the maps’ visual signature, their real power is the cross-referenced ...

An instrument aboard the Terra satellite has generated the most complete digital topographic map of the Earth ever made, covering 99% of the planet The most complete digital topographic map of the ...

(a) Locating features with the help of a four-figure or a six-figure grid reference. (b) Definition of contour and contour interval. Identification of landforms marked by contours (steep slope, gentle ...