They will put the date on their website and FB page usually around August if I remember correctly. Only a couple hotels in Parker but I have never had a problem booking a room. The majority of the participants camp at Buckskin park where the event is staged. Check in is Thursday night and Friday morning before the trail runs start. They will post the trails with a description and suggested tire size and equipment, and you just sign up. I have never had anyone inspect my Jeep or verify my equipment. I typically run trails above what is suggested for my Jeep and equipment and have the scars and body damage that come with those trails. I usually get an "If you are ok with it then we are" from the other participants. Well run event just low key.