Since you live right there and all the freqs. are conventional VHF, why not get a scanner. Then you can crank the volume up as high as you like.The feed's audio is very low,and with my account I cannot email the provider.
This page shows a transmitter near Lime. If it's correct, you should get a signal right up the valley. Of course, the only way to be sure is to try it. Is there anyone in the area that has a scanner you can borrow to try? It looks like 154.8 is the best freq. to try.Because I live 40 miles from Baker City through Snake River Canyon in a valley surrounded by mountains. Because I'm new to scanners I'm not sure of the range, this way I can get important information on road conditions. If you have any suggestions on antennas and cheap scanners I'd be interested in hearing them.