What problems did the American whisky trades bring to the North West?

Question:A lot.
The booze they were selling killed people like a poison for one thing.
It really was horrible stuff.
The other point was that they were doing most of their trade with booze and after the trading was done the trappers ended up with no winter supplies.
To bad.
However the biggest problem was with the fighting and killings that were going on at the trading post.
Fort Whoop-Up was killing a lot of the people because they were robbing each other's trade goods for booze.
There was no law and order about it at all.

Best Answer - Chosen by Asker: A lot.
The booze they were selling killed people like a poison for one thing.
It really was horrible stuff.
The other point was that they were doing most of their trade with booze and after the trading was done the trappers ended up with no winter supplies.
To bad.
However the biggest problem was with the fighting and killings that were going on at the trading post.
Fort Whoop-Up was killing a lot of the people because they were robbing each other's trade goods for booze.
There was no law and order about it at all.

~Look up Daniel Shays, Robert Philson and Herman Husband and do a little reading. It will be more than obvious, depending on the era to which you refer. If you are referring to the northwest as Washington and Oregon, et al, the answer is a little different. Firewater was a greater problem (weapon?) on the Plains and in the Southwest than along the coast.