How are the mice numbers at Nick's Lake and other places this year??

I was talking to some people who said that last year there was an infestation of mice at Nick's Lake campground near Old Forge. I did a search and it seemed to be at a number of campgrounds including Fish Creek Campground. Question... has anyone experienced high numbers of mice while camping this year. My friend trapped 40 at Nick's last year and they were everywhere especially after the sun went down. Thanks, I have a site in July at Nick's and want to know what we might be heading into.