Trail Mapping

Mapping Aids

• Topographic Map Symbols - Find out what is on your trail. Some items to look for include development, water sources and wet lands.
• USGS Topographic Maps - the old generation of topographic maps from the U.S. Geological Survey (USGS).
• US Topo - the new generation of digital topographic maps from the U.S. Geological Survey (USGS).
• Convert Coordinates Use this conversion tool on Boulter.com to convert between decimal coordinates (for GPS) and degrees / minutes / seconds.
  Enter degrees / minutes / seconds like this: N 41 58 33 W 71 46 32
  Enter decimal coordinates like this: N 41 58.550 W 71 46.533

Google Maps

Get coordinates from Google Maps.

Past this javascript code into URL address window:

javascript:void(prompt('',gApplication.getMap().getCenter()));

Then, if you right click on a spot and select "Directions from here" the coordinates will show up on the box.

Google Maps Labs - add some handy mapping functionality to this much-used website.

To get to a location in Google Maps using GPS coordinates, enter the coordinates in this form (latitude, then longitude):

41 58.550 - 71 46.533
N (+) S (-) E (+) W (-)

Page updated 8/24/21 J. Froimson