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Download high resolution USGS topographical maps for offline GPS* use. Topo Nomad is designed for road trips, camping, hiking, exploration and geographical history. Map images are accurately center aligned regardless of datum and placed on top of Apple's map kit for easy referencing and intuitive touch navigation. This software utilizes the latest capabilities of IOS offering the highest performance with fast start up, map rotation, rendering and zoom with unbeatable details and undistorted resolution. Map downloads are dispatch...

Get real-time elevation from your iOS device's GPS receiver and built-in geoid model. As a bonus, we've also included access to the USGS Elevation Web Service which provides US ground elevation data. You'll be amazed at how, when you have a good view of the sky, Elevation For Real's internally generated elevation converges on the USGS value after just a short time. Outside the U.S., or on iOS devices with non-U.S. region settings, or if the USGS elevation service is unavailable, Shuttle Radar Topography Mission (SRTM) published el...

Hikers and climbers can now access real full-resolution USGS topographic 1:24k quads with side-scrolling multi-zoom map capabilities. In addition, quads can be graphically selected for storage on the device for access where you need it most, away from cellular and WiFi coverage! Current Map and GPS positions are available in latitude/longitude and UTM coordinate systems. NAD27 and NAD83 are supported. Available Map Sources: USGS (United States and borders) Toporama (Canada) OpenCycleMap (World) OpenStreetMap (World) 11...

* View over 70,000 USGS and Canadian topographical maps on your iPhone or iPod touch. * Ideal for hiking and other backcountry activities. * Map downloads are FREE! * More than 16 million maps downloaded so far! - iPad owners, please see the app "Topo Maps for iPad". * Users write: " I've bought all the topo map apps and I like this the best " " Scans are gorgeous ... the interface is exceptionally clean " " Downloading maps is easy and fast ... Map displays beautifully and zooms flawlessly " * Includes Alaska (at 1:2...

Did you just experience an earthquake? Find out how close and how big it was with iFeltThat, the most customizable worldwide earthquake app for the iPhone and iPod touch. iFeltThat retrieves information directly from official USGS sources to show you seven days of microquake activity as low as magnitude 1.0 in most U.S. regions. Earthquake lists for U.S. regions show you precisely where an event occurred (not just "Northern California," but "5 mi SE of Santa Rosa, CA"). Rotate any list view to see the region-wide map. You can also...

The ultimate app for Geography/Geology amateurs and professionals." - Mel Martin, TUAW.com Do you know which state assembly district you are in? Which school district? Where is the closest railroad? Is there a mine nearby? What kind of rock are you sitting on? Geograph GA is the edition of the popular GIS (geographic information system) covering the state of Missouri. It is a self-contained application (no Internet or cellular access required) that contains a vast amount of information about the geography and geology of the Show ...

Get daily news and information about recent volcanic activity from three different news sources. First, the United States Geological Survey (USGS) Volcano Hazards Program. Each Volcano Activity Report includes an assigned alert level and aviation color code as issued by the USGS, as well as details regarding current activity. Volcano Updates typically contain detailed information on the active Hawaiian and Alaska Volcanoes, as well as any new activity at Yosemite. If something is going on, the USGS update will appear here. New f...

"The ultimate app for Geography/Geology amateurs and professionals." - Mel Martin, TUAW.com Do you know which state assembly district you are in? Which school district? Where is the closest railroad? Is there a mine nearby? What kind of rock are you sitting on? Geograph GA is the edition of the popular GIS (geographic information system) covering the state of Georgia. It is a self-contained application (no Internet or cellular access required) that contains a vast amount of information about the geography and geology of the Peach...

MapTiler allows you to download map tiles in z/x/y format from more than 40 different tile providers. Offline tile packages can be created for Leaflet, Google Maps and OpenLayers. You can preview the resulting html page and the html code from the app. If you're happy, you can export the complete bundle (tiles + html) to iCloud Drive and Dropbox. Supported map tile providers are: - GMaps - Open Street Maps - CartoDB Dark Matter - CartoDB Positron - Geofabrik Topo - Komoot - MapToolkit Topo - Michelin - Norway Finn - Norway Topo -...

The ultimate app for Geography/Geology amateurs and professionals." - Mel Martin, TUAW.com Do you know which state assembly district you are in? Which school district? Where is the closest railroad? Is there a mine nearby? What kind of rock are you sitting on? Geograph NC is the edition of the popular GIS (geographic information system) covering the state of North Carolina. It is a self-contained application (no Internet or cellular access required) that contains a vast amount of information about the geography and geology of the...