WSU Extension > Yakima County > Loading view. There were no results found. There were no results found. Events Ahtanum Park Garden Ahtanum Park Garden 1000 Ahtanum Blvd Union Gap, Washington Get Directions Today Upcoming Upcoming - 6/6/2026 Now Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file