Both location and visually. Some of them are pretty easy to distinguish (Snakes and Colorados), while the two that look similar (Bonnies and Yellowstones) live in pretty distinct drainages.
Type: Posts; User: Poke 'Em
Both location and visually. Some of them are pretty easy to distinguish (Snakes and Colorados), while the two that look similar (Bonnies and Yellowstones) live in pretty distinct drainages.
Throw in this:
http://farm5.static.flickr.com/4103/5024125349_049346e0b8_b.jpg
This:
http://farm5.static.flickr.com/4154/5024777570_05bb715645_b.jpg
And this:
Yellowstone Cutthroat:
http://farm4.static.flickr.com/3199/2741097869_509bb6a185_b.jpg
Snake River Cutthroat:
http://farm5.static.flickr.com/4099/4771684325_6a41a98d12_b.jpg
Colorado...