Google Earth and GPS Classroom Activities for Intermediate U.S. History/Geography - Build tours of the original thirteen colonies and the road to the Revolution, map out overland routes for the 1849 gold rush, survey" land to prepare for the Oklahoma land rush, identify the locations of major battles and explain their impact on the war, and more in this hands-on, problem-solving approach to making history and geography exciting and relevant using both Google Earth and GPS technology.