[GeoStL] Re: Flooding in northeast MO

Thanks Jim for the info. The person I taught with out at Philmont makes his own 
maps and owns a company called Timely Topos. He had a laptop device that was 
around 20K and had a GPS built in. He could strap the laptop around his waist 
and neck and walk around clicking things as he went to make a custom topo. It 
was very cool! 

I will check out the site. I use the topos you made for Mark Twain all the time 
in ExpertGPS. 

Mike

  ----- Original Message ----- 
  From: Jim Bensman 
  To: geocaching@xxxxxxxxxxxxx 
  Sent: Tuesday, July 29, 2008 6:26 PM
  Subject: [GeoStL] Re: Flooding in northeast MO


  You download the elevation and hydrology data from USGS servers.  The 
hydrology is in a format you can use directly.  The elevation data (which is 3 
times more accurate than what is on the USGS 24K maps) has to be run through a 
freeware program to turn the geotiff into a file with contour lines.  Then 
there is another freeware program you compile the map in.  There is a steep 
learning curb, but once you figure it out, it is pretty easy to do.  It 
probably takes 15 to 20 minutes to make a map (that does not include the time 
the computer is compiling and converting).  Here is a description of the 
process I use:

   

  http://home.cinci.rr.com/creek/garmin.htm 

   

  Jim Bensman
  "Nature Bats Last"

  Go Obama!

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