I have only been to Hazel once. Mid Sept last year thurs thru Sun. We stayed at bone valley. There was one guy at the site below it and people leaving bone valley when we got there. Other than that we only saw rangers and people at the lake campsite when we left. Although there was one very curious bear or several as we all saw one at different times. I think October is a different story from what I hear. I will hopefully be back there (or somewhere down that way) mid October.