I got out to shoot up at the cottage prior to the peak and I was seeing about 10-20 an hour but not catching them in the exposures until this one.
Stars by
Zen, on Flickr
The Wed night before peak was probably the best night up this way but I was working the next day and didn't head up, currently it's crap weather but they do hang around for a couple days after peak.
This is a helpful link to find dark sky areas near you and to see the forecast for the night.
http://www.cleardarksky.com Cheers,
Zen