Free Maps for Garmin?

http://www.gpsfiledepot.com/index.php

Here is a link for free maps that you can download.

If you want good trail maps, the best thing I would suggest is to create your own.

Here is a link to what I have done for the Snowy Range and several areas in Colorado. Your Oregon GPS should allow you to upload "custom maps" - so all you have to do is follow the instructions -

http://www.snowestonline.com/forum/showthread.php?t=265592

Send me a PM if you have any issues - the biggest thing guys are forgetting is to change the file extension of my attached maps from .pdf to .kmz. Once you do that it is easy....