2 Free Issues and 3 Free Gifts!
Full Name:
Address 1:
Address 2:
Zip Code:
Email: (required)
If I like it and decide to continue, I'll pay just $12.00, and receive a full one-year subscription (9 issues in all), a 73% savings off the newsstand price! If for any reason I decide not to continue, I'll write "cancel" on the invoice and owe nothing.
Your subscription includes 3 FREE downloadable booklets.
Or click here to pay now and get 2 extra issues
Offer valid in US only.

Also on

Enter Zip Code

Backpacker Magazine – August 2011

The Manual: Plan a Trip with GPS

Learn how to plot your own digital adventures with precision--then print the maps and prep your GPS.

by: Excerpted with permission from Using a GPS, by Bruce Grubbs

PAGE 1 2

Why use a computer and a Global Positioning System (GPS) receiver to plan, record, and share your excursions? In a nutshell: accuracy, thrift, and customization. In Using a GPS: Digital Trip Planning, Recording, and Sharing ($13,, excerpted here, Bruce Grubbs shows you how to plot your own digital adventures with precision—then print the maps and prep your GPS.

Download a Trip
The easiest way to plan any hike (or paddling or backcountry ski trip) with GPS is to download waypoints, routes, and track data (a trail of automatically saved breadcrumbs dropped along your route) from an online trip database to your computer. You can find GPS info on several commercial sites or, better yet—shameless plug—on free sites such as, which has thousands of editor-approved trips. From dayhikes to long thru-hikes, from Acadia to Zion, these trips are ready for immediate navigation.

Check the File Format
Data downloaded from the Web is usually in a GPX (GPS eXchange Format) file format. Geocache data is in LOC (localizer) format, and digital maps have their own format, such as National Geographic’s TPO or DeLorme’s TPX. GPS units commonly come with software for your computer that lets you read GPX and LOC files and save them to your GPS (as well as upload files from the GPS to the computer). Need to change the format to make it compatible with your setup? Free programs, such as EasyGPS ( and GPS Babel (, will convert between myriad GPS file formats. Tip: Use a GPS-enabled smartphone with a navigation app, like BACKPACKER GPS Trails (, and download data directly to the phone, skipping the computer entirely.

Do a Sanity Check
Since so many sources of GPS trip data exist (some of dubious accuracy), always check on the digital map whether the route makes sense: Does it lead you over a cliff or in circles? Compare the data to other information, such as guidebook descriptions, information from rangers and hikers who’ve done the trip, and online reviews of the trip report itself.

PAGE 1 2

Subscribe to Backpacker magazine
Sign up for our free weekly e-newsletter
Address 1:
Address 2:
Email (req):
Reader Rating: -


Oct 13, 2011

Hi,good luck for you!
===== ========
New online store,you can find many cheap and fashion stuff
Nike air max shox dunk AF1 $30--39;
Ed Hardy AF JUICY POLO Bikini $20;
Handbags (Coach lv fendi d&g) $30
T shirts (Polo ,edhardy,lacoste) $15 Rolex: $99
Jean(True Religion,edhardy,coogi) $30
Sun glasses (Oakey,coach,gucci,Armaini) $15
New era cap $15
Bikini (Ed hardy,polo) $20
===== ========
Accept westernunion,moneygram,bank transfer,credit card.


Your rating:
Your Name:


My Profile Join Now

Most recent threads

Trailhead Register
Falling in the backcountry
Posted On: Aug 20, 2014
Submitted By: overthehillwalker
Anyone else planning a JMT hike this summer?
Posted On: Aug 20, 2014
Submitted By: Scot

View all Gear
Find a retailer

Special sections - Expert handbooks for key trails, techniques and gear

Check out Montana in Warren Miller's Ticket to Ride
Warren Miller athletes charge hard and reflect on Big Sky country, their love for this space and the immense energy allotted to the people who reside in Montana.

Boost Your Apps
Add powerful tools and exclusive maps to your BACKPACKER apps through our partnership with Trimble Outdoors.

Carry the Best Maps
With BACKPACKER PRO Maps, get life-list destinations and local trips on adventure-ready waterproof myTopo paper.

FREE Rocky Mountain Trip Planner
Sign up for a free Rocky Mountain National Park trip planning kit from our sister site

Get 2 FREE Trial Issues and 3 FREE GIFTS
Survival Skills 101 • Eat Better
The Best Trails in America
YES! Please send me my FREE trial issues of Backpacker
and my 3 FREE downloadable booklets.
Full Name:
Address 1:
Zip Code:
Address 2:
Email (required):
Free trial offer valid for US subscribers only. Canadian subscriptions | International subscriptions