GPS for Dummies.pdf - Engineering Surveyor

Chapter 19: Exploring Web Topographic Maps313MapCardMapCard is a commercial Web map site oriented toward outdoor recreationusers; the site was named the best new product of 2003 by BackpackerMagazine. The Web site offers topographic maps, aerial photos, lake depthcharts for fishing, and tools for creating custom maps; Figure 19-7 shows ascreenshot of a map displayed with MapCard. Although MapCard doesn’tdirectly offer free online maps (a yearly subscription is under $30), the sitedoes have a free “test drive” with which you can download maps and try outthe subscription services for a single day. You can visit MapCard at www.mapcard.com.MyTopoMyTopo is a commercial Web site for creating custom USGS topographicmaps or aerial photos; a screenshot of using the site is shown in Figure 19-8.You select a location you want to view (either by place name or coordinates),and MyTopo displays the map or photo. You customize the map by setting itssize, selecting a portion of the map to display, and naming the map. A previewcopy of the map as it will be printed is displayed. You can then order a copyof the map in several different sizes on waterproof or glossy paper.Figure 19-7:Accessan onlinemap withMapCard.