Shea Pit & Osborn Wash is located east of Parker, AZ and is home the Best in the Desert Off-Road Series – Parker 425 & 250 Desert Race. The Parker Desert Races includes different pro classes including dirt bike, ATV’s, UTV’s and Trophy Trucks. Osborn Wash is adjacent and to the south of the Spectator Area. This destinations offers excellent OHV riding and camping opportunities. The best time of year to ride here is in the spring, fall and winter seasons, due to the low desert climate.