In Utah alone, he estimated that in addition to the more than 200,000 registered OHVs, there are at least that many more that are not registered due to the expense. ??? ??? Add in four-wheel drive trucks and cars, dual-sport motorcycles and other off-road vehicles and the number comes to 600,000 OHVs in Utah, Huck said. ??? ??? The BLM refuses to accept that and plan for that.