With the olympics there at the same time and it being the millenium, participation was at an all time high. The largest annual gathering in North America attracts about 20,000 to 30,000 participants from the 1st to the 7th of July . These happen in a different national forest each year. Amazingly enough, after this temporary city withdraws, the forest is returned to more pristine nature than it was found in. The 2001 national will be in either California or Utah.
Regional gatherings happen all over at various times.
Read about a Montana regional . Alaska invites ALL to one every season. Read about past Alaskan gatherings . Find out about the next Alaskan seasonal gathering . See what info was handed out at the summer gathering.