According to Wikipedia: "Knott's Berry Farm is a 160-acre theme park in Buena Park, California, owned by Cedar Fair Entertainment Company. Since the theme park's acquisition by Cedar Fair, the park's annual attendance has steadily increased. The 2013 Global Attractions Attendance Report states Knott's Berry Farm is the 13th most visited theme park in North America. The theme park has approximately 10,000 seasonal/full-time employees. The park features 40 rides including roller coasters, family rides, children's rides, water rides, and historical rides, with plans to expand in the future."
These pictures were sent in by MrK. He notes that these urinals are located directly adjacent to the main entrance.