Jump to content

Usgs Topos


Xangxa

Recommended Posts

I've read online comments about there being free DRG (digital raster graphics) of the USGS topo maps. I've searched this site but the threads had no specific details. I've also searched the USGS.gov site and couldn't find the maps. The closest I got was pointing me to a list of "partners" that would SELL me a map.

 

Can anyone give me some specific links to some 1:24K or better DRG's?

 

I'm wanting, at least to begin with, topos for a 50 mile radius around Chattanooga, TN to use with GPSTuner.

Link to comment

Download your free USGS quads for Tennessee here. To find the names of the quads you need go here and zoom in on your area until your in far enough to see the quad names. I see you use GPS Tuner. You'll have to convert these .tif files to a file type that it supports. Any good graphics program will do this. A nice feature of Oziexplorer is that it will automatically calibrate these maps. I don't think GPS Tuner will do that.

Edited by Poindexter
Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...