WSU Extension > Snohomish County > Loading view. There were no results found. There were no results found. Events Sheriff’s Posse Arena Sheriff's Posse Arena 5421 S. Machias Rd. Snohomish, WA United States Get Directions Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file