Tag Archives: Scanned Maps

ExpertGPS Review: Historical Railroad Mapping

Posted on May 29, 2009 by Dan Foster

Mike G. uses ExpertGPS to research abandoned railroads. ExpertGPS lets him mark rights of way on historical topo maps, and then scour modern aerial photos for matching features.”

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Creating GPS hiking maps from a scanned trail map

Posted on May 29, 2009 by Dan Foster

Jim asks: “I would like to hike trails in various park locations throughout the US ( mostly Tampa area, FL). I can find the addresses online and usually a general map of the trails. Many of these trails are miles … Continue reading →

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Help! My GPS doesn't support State Plane Coordinates

Posted on April 6, 2009 by Dan Foster

Monica has an aerial ortho photo of New Mexico, which uses the New Mexico state plane coordinate system, NAD 83 datum. Her GPS doesn’t support NM SPCS, NAD83, however. GPS expert Dan Foster shows how ExpertGPS can convert these state … Continue reading →

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How can I Compare Historical Topo Maps with Current Maps?

Posted on March 4, 2009 by Dan Foster

Interested in old maps or historical topo sheets? You can use ExpertGPS to display old topo maps and compare them against modern topos and aerial imagery.

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Mapping a Hunting Area on a Farm using ExpertGPS and Google Earth

Posted on February 26, 2009 by Dan Foster

Bill G. writes: “I see that I can enter my hunting areas with expert GPS and did see some farm capabilities. How easy is it to put fence lines and gates on the maps? Can I pull in a Google … Continue reading →

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Displaying orthophotos with world files

Posted on November 5, 2008 by Dan Foster

ExpertGPS author Dan Foster explains how to import orthophotos, aerial photographs, maps, or other imagery into ExpertGPS Pro without having to recalibrate the images. ExpertGPS Pro users can import georeferenced imagery, and the software will automatically read the geo-referencing information … Continue reading →

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How do I use a Lambert Conformal Conic Map in ExpertGPS?

Posted on October 30, 2008 by Dan Foster

Keith S. needs help calibrating a map of Mongolia. He knows the map uses the Lambert Conformal Conic projection, but he needs help figuring out what values to use in ExpertGPS so that the map will display correctly.

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Using GeoTIFF Maps in ExpertGPS

Posted on October 10, 2008 by Dan Foster

ExpertGPS user Russell T. asks how he can work with GeoTIFF imagery. Dan Foster gives recommendations on preparing GeoTIFF orthoimagery for use in ExpertGPS and other GIS mapping software, and offers suggestions on how the aerial imagery should be prepared … Continue reading →

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