GPS TRAIL MAPPING
Posted April 27, 2004 - 12:37 PM
I've been watching this thread . . .
You have to make two distinctions:
1) Is it for "finding your way back home"?
2) Is it for "production mapping/cartography" and the above?
If it is for (1) then any old GPS unit from $100 to $500 will do just fine . . . for most people that is all they will ever need. The higher-end models in that range will allow for color display of background/basemap/topo images and of course that is cool and can be of assistance in a variety of situations. Normally this kind of device can be mounted on the bars using a variety of mounting devices. I've found it very much "in the way" in with most devices.
If you want to make a "real" map of a riding area using GPS, plan on spending $5,000 to $10,000 for the appropriate equipment, associated software, and possibly base mapping layers. The cost is high, but the results are amazing!!! We've used Trimble GeoExplorers (in a small backpack) with a remote mounted antenna on the helmet and have captured some incredible trail detail at a very high level of accuracy (+/-40 feet). Because the data is captured using this methodology in a know coordinate system you can easily overlay it on basemapping from www.topozone.com, www.terraserver.com, or if you live in Kentucky using basemapping for FREE from http://kymartian.ky.gov/. The results allow for the publishing and sharing/selling of "trail maps" to interested folks . . . you can obviously find your way back home with this sort of device as well.
I think it is cool that the off-road biking community is embracing this technology!!! Very Nice!!
Posted April 27, 2004 - 05:25 PM
Posted April 27, 2004 - 11:43 PM
You don't need to spend that kind of dough for mapping. The ExpertGPS program I mentioned above sells for about $70 and works with most handheld GPS units available today. It downloads maps while you are working from TerraSever and/or a few other places for no additional charge (most of these are USGS maps so are as accurate as you are likely to find without surveying yourself). You can also scan a paper map and easily calibrate it to the route or track from your GPS. This system might not be as accurate as what you are using, but I found a particular tree from a map I made in my house inIdaho when I was riding in Kansas! Close enough for me.
I think you can still download a trial version of ExpertGPS for free. www.expertgps.com
Posted April 27, 2004 - 11:56 PM
Can you do me a favor? I have a friend I ride with that lives in Kanloops BC. We both have Magellan Meridans. We can't find any decient maps of centeral BC, either from Magellian or third party. The pictures of the maps finding your bike are better than anything we have. Could you look at the Kanloops area on your CD and see if it has good maps? If so it would be worth it for him to invest in a new GPS.
Thanks - PS am still working on a cost for your heat shield.
Posted April 28, 2004 - 03:15 AM
Thanks for checking on the heat shield.
The GPS map of finding the bike was from Search and Rescue and they use FUGAWI software. It's a bit more high tech than the Garmin stuff I have. Here's what Kamloops looks like to my software. Not a great lot of detail. The easiest way for me to post it is to print to PDF and then convert to JPEG, and it gets a little blurry in the conversion.
Posted April 28, 2004 - 01:52 PM
Posted April 28, 2004 - 02:38 PM
Posted April 28, 2004 - 04:01 PM
Posted April 28, 2004 - 06:26 PM
I'd say the GPS has about 1000 miles combined desert/mountain riding.
Posted April 29, 2004 - 03:32 AM