Can't see map that I just downloaded

[Boyd]

That is very odd. Are you using Mapsource to send these files? There shouldn't be files with those names on your GPS unless you copied the wrong things there or changed the names. When you use Mapsource, it creates a file named GMAPSUPP.IMG inside the \Garmin folder. The file can be sent to either internal memory or a micro SD card, depending on which you chose in Mapsource.

FWIW, I was just looking at my Oregon 400t and there is no basemap (no GMAPBMAP.IMG file), just the pre-loaded US Topo.

DO NOT mess with the file named GMAPPROM.IMG, that is your US Topo map!

[brianw7]

I found the .img file and was able to re-name it. Just need to figure out why I can't see the track I drew on the map in mapsource. Any ideas? Thanks for the help.

[maps4gps]

The gmapsupp.img file is in the Garmin folder on either the Oregon's internal memory or the micro memory card if you put one in the Oregon.  Attach the Oregon to the computer using the USB cable which came with the GPSr.  Turn on the Oregon. Use WindowsExplore or whatever program you usually use to see what is in a folder or rename a file.  The internal memory will be assigned a drive letter, the micro memory card will have a different drive letter.

[maps4gps]

The track is not part of any map being transfered.  It always goes to the units internal memory.  Since I seldom use tracks, I can not say where or how to find it.  Others should be able to be specific on this.

[kbellis]

Brian - Saved tracks and waypoints can be located on your Oregon under Drive:\Garmin\GPX.

Kelly

[kbellis]

How do I rename it once it's in the 400t? The file that I see in the unit is named ME Trails, the file I overwrote was named MAINE-topo.....where is it named gmapsupp.img?? Thanks.

Just curious... where did you find that map file named ME Trails?

I just tried looking for Maine Trails from trails100. After downloading and installing it - but when I try to view trail100 in MapSource - Zoomed Out to Region - all I see is a pale yellow rectangle with tiny text in the lower right hand corner: Map Created With http://Http://Cgpsmapper.com

[maps4gps]

For an overlay/transparent mapset, there seems to be no way to have a traditional overview map which MapSource can display.  All that I get, or any others I have seen, are the data quad/tile outlines and the 'created by .... '.  You have to zoom-in for the trails in the data file to be displayed. Most areas do not have many trails on the printed USGS 100k quads, so it is hit-or-miss on what you will find.

[kbellis]

That explains it - I was zooming in and missing!

Thanks for the note.

Kelly