Turn your iPhone, iPad, or Android into a fully featured GPS with Iowa Off-The-Grid Maps. Get instant access to thousands of full-color topo maps for the entire state. These offline digital maps work off-the-grid, even when you"re far from cell phone and data networks.Includes GPS mobile apps designed for hiking, backpacking, hunting, and other outdoor activities.• Map Types Included: Topographic, Forest Roads, Lake Maps, Public Land Boundaries, Private Land Maps• Every memory card comes pre-loaded with an entire state"s worth of full-color USGS topo maps, enhanced by MyTopo.• Topo maps feature 18 zoom levels (1:250K to 1:24K) so you can see your GPS location in great detail. See 20-foot contours in most places.• Private Land Maps: See ownership and property lines for these Iowa counties: Allamakee, Appanoose, Audubon, Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler, Calhoun, Carroll, Cass, Cedar, Cerro Gordo, Cherokee, Chickasaw, Clarke, Clay, Clayton, Crawford, Dallas, Davis, Delaware, Des Moines, Dickinson, Dubuque, Emmet, Fayette, Floyd, Franklin, Fremont, Greene, Grundy, Guthrie, Hamilton, Hancock, Hardin, Harrison, Henry, Howard, Humboldt, Jackson, Jasper, Jefferson, Johnson, Keokuk, Kossuth, Lee, Linn, Louisa, Lucas, Lyon, Madison, Mahaska, Marshall, Mills, Mitchell, Monona, Monroe, Montgomery, Muscatine, Page, Palo Alto, Plymouth, Pocahontas, Polk, Pottawattamie, Poweshiek, Sac, Scott, Shelby, Sioux, Story, Tama, Van Buren, Wapello, Warren, Washington, Wayne, Webster, Winnebago, Winneshiek, Woodbury, Worth, and Wright.• Maps work off-the-grid. No cell towers required.• Works with iPhone, iPad, and Android devices. Android: Place microSD card into device. iPhone/iPad: Drag files from SD card into iTunes. Sync device.• Supported App: Trimble Outdoors (iPhone, Android, iPad). • Supported Website: TrimbleOutdoors.com.