Ditto. You ain't going up it or down it unless your a mountain goat. Its either up or down in a drainage and I don't like being caught up in them. A lot of critters like bedding on the overhanging rockledges along the drainages, sometimes the water deafens making it impossible to hear anything and you have the posiblity of surprising a critter between the water and the rock face your walking, not a good place to be in as its not good to corner or surpriseany animal. I have had my hair on my neck standing at times encountering courgar kills and Black bears with cubs and for me no place to exit. Sorry for rambing on, but just one more thing, when going down, you gotta go back up.
Bobby