Loading view. There were no results found. There were no results found. Events Best Western Inn at Horse Heaven Best Western Inn at Horse Heaven 259 Merlot Drive, Prosser, WA 99350, USA Prosser, Washington 99350 http://whatcom.wsu.edu/ag/edu/sfc/ Get Directions 509-786-5609 United States Today Now onwards Now onwards Select date. Hide Recurring Events Previous Events Today Next Events Export Events