This .8 acre fenced off-leash dog area is located in Butterfield Park. The dog park is well-shaded with benches, a picnic table and a doggie drinking fountain. From the 91 Freeway, take the Maple Street exit and go north. Maple will dead end at Smith Street. Go left on Smith Street about .5 miles to Butterfield Drive. Then turn left to Butterfield Park just across the street from the airport. Thanks to one of our readers for recommending this dog park.