Map Projection
This corny school film from the 40s does a pretty good job of
introducing the concept of map proj...
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Software Downloads
Latest Releases and Current Versions of all TOPO! Products

TOPO! State and Weekend Explorer
TOPO! State Series and Weekend Explorer products are both Mac and PC compatible. Depending on your current version there are a variety of free and value-priced upgrades. Those seeking to use State or Weekend Explorer in conjunction with a Magellan Triton GPS will need a special version available below.
PC Updates:
Our latest release, available as a free upgrade for anyone running version 4.0 or later. Note, this version does not support Magellan Triton map transfer - please download version 4.4.3 instead.
Our current release for Magellan Triton GPS users. Available as a free upgrade for anyone running version 4.0 or later.
State Series users seeking to upgrade to Version 4.0 from version 2.6 or higher can purchase this special priced kit from our online store.
A free upgrade for TOPO! State Series users running versions 2.6 or higher.
Mac Updates:
Our latest release, available as a free upgrade for anyone running version 4.2 or later. This update adds support for intel based Macs.
Mac State Series users seeking to upgrade to Version 4.0 from version 2.6 or higher can purchase this special priced kit from our online store.
A free upgrade for TOPO! State Series Mac users running versions 3.0 or higher.
Visit our new support Wiki for detailed how-to articles and more



Trails Illustrated Explorer
The TOPO! powered Trails Illustrated Explorer series including: "National Park Explorer", "Southern Appalachian Mountains Explorer", "Adirondack Explorer", and a selection of Individual National Park Explorer titles is both Mac and PC compatible and combines our award winning Trails Illustrated maps with a special version of the TOPO! software.
PC Updates:
Our latest release, available as a free upgrade for anyone running an earler version. Note, Trails Illustrated Explorer products do not support Magellan Triton.
Mac Updates:
Our latest release, available as a free upgrade for anyone running an earlier version. Note, Trails Illustrated Explorer products do not support Magellan Triton.
Visit our new support Wiki for detailed how-to articles and more


TOPO!Backroads Explorer
TOPO! Backroads and Backroads Explorer 3D offer detailed USGS 1:100k scale topographic maps for the entire US coupled with a special version of the TOPO! application. Backroads and Backroads Explorer 3D are no longer available, but continue to be supported.
PC Updates:
Our latest release, available as a free upgrade for anyone running an earler version of Backroads or Backroads Explorer. Note, Backroads Explorer products do not support Magellan Triton.
Mac Updates:
A free upgrade for anyone running an earlier Mac version of Backroads Explorer 3D. Important Note: This update is for "Backroads Explorer 3D" only. The standard "Backroads Explorer" edition is not supported.
Visit our new support Wiki for detailed how-to articles and more


TOPO!(Wildflower) Regionals and Trailsmart
The original TOPO! Interactive Maps on CD-Rom and Trailsmart National Parks products were designed by Wildflower Productions of San Francisco, CA. These products are no longer manufactured.
PC Updates:
A free upgrade for anyone running an earler version of TOPO! or Trailsmart. Note, TOPO! Regional and Trailsmart products do not support Magellan Triton.
Mac Updates:
A free upgrade for any Mac user running an earlier version of TOPO! or Trailsmart. Note, TOPO! Regional and Trailsmart products do not support Magellan Triton.
Visit our new support Wiki for detailed how-to articles and more


Pocket TOPO!
Pocket TOPO! works with TOPO! State Series and Backroads Explorer 3D products, and enables you to carry the most popular TOPO! features on your Palm or Pocket PC. Pocket TOPO! is no longer manufactured.
PC Updates:
A free upgrade for anyone running an earler version of Pocket TOPO!.
Visit our new support Wiki for detailed how-to articles and more





