Here's what other sites are saying:
The Garmin Topo U.S. 24K Southwest DVD lets you open USGS topographic maps from the southwest states on your computer and load them into your Garmin GPS receiver.
Garmin's new TOPO U.S. 24K gives you the highest level of topographic detail available. They have taken 24K topo data for the U.S. and have made regionalized coverage available on DVD or preprogrammed microSD cards with SD adapter. These new TOPO U.S. 24K regions will help ensure you're ready for your next backpacking, hiking or camping adventure.
- Mountains Plus
Garmin Topo US North Central 24K DVD US Mountain States Map Application / US Midwest Map Application
Garmin TOPO US 24K North Central microSD
Satmap National Geographic TOPO! Idaho SD Card
National Geographic TOPO! Montana CD-ROM
National Geographic Glacier & Waterton Lakes National Parks Explorer 3D - CD-ROM
National Geographic Rocky Mountain National Park Explorer 3D CD-ROM
Satmap National Geographic TOPO! Colorado SD Card
Satmap National Geographic TOPO! Arizona SD Card