Was up at Greenwater today. Had a great day of riding, deep powder. Broke trail all day. Then I returned to the truck to only find out that the road had been blocked for a long time (couple of hours). Once again at the 12% grade. Mulitple Trucks and trailers stuck and blocking the road. Funny thing is that we all towed in trailers that morning and had no problem getting up there. Maybe because we all had good snow tires with studs??? If the conditions were bad we also all had chains and were willing to use them. Also had no problem driving out once the road was not blocked. I do not know why people do not know how to drive or carry the proper chains and equipment. A wrecker had to come in to get the road opened back up. Then a 2 wheel drive RV towing a trailer and a pickup towing 4 sleds, tried to drive out and got stuck on the first hill going out and blocking the road again. "Here's your sign" Only then did they think to chain up. Not when they were in the parking lot. Sorry to see this so early in the season. Before you know it the snowpark will be moved to the lower gate and we will be driving on concrete again. If you plan on riding at Greenwater, PLEASE, PLEASE know how to drive in snow and ice, have the propper equipment, snowtires, chains, tow straps, ect, and know how to use them. Chains only work when on tires not inside the truck. Please do not ruin a good day for others and force the Forest service to lower the snow park because of your actions and being unprepared. Go to snoqualmie pass and close i-90, see how that goes.