There should be no question whatsoever about why this map I am about to show you could be incredibly valuable to land surveyors. Hillmap is a somewhat new Google Maps application that allows users to view topographical maps on top of and alongside Google Maps. This mapping app includes a number of different topographical layers that can be selected from a drop-down menu.

Hillmap application allows users to explore elevation and slope data for any point or to draw paths on the map to view slope and distance data. The app also includes a number of viewing options, including side-by side and full-screen modes.

Hillmap.com lets backcountry travelers plan trips, view and print topo maps, overlay slope and snowdata and more. Read our blog for more and email us with questions, comments or bug reports.

New: Stackable maps including CalTopo maps and slope overlays on the data tab. Drag and drop GPX import.