Category Archives: Mapping

Some time ago I posted some instructions on how to create on-line topo maps of hikes / excursions, starting from GPX files.  Joseph Elfelt of Gmap4 has recently written to me, announcing the availability of new, and much improved maps. … Continue reading →

When I first arrived in California many years ago, it was difficult to find good topographical maps.  Sure, you could buy maps of Yosemite or Sequoia National Parks (at 1:62,000 scale or somesuch), but if you wanted to buy a … Continue reading →

I want to tell you how to obtain great maps of your hikes, such as this one of the hike from Squaw Valley to High Camp. First, you need to record a GPX track file describing the hike.  Most GPS can … Continue reading →