No matter where you are in Tucson, Ariz., you're no more than 20 miles from Saguaro National Park. The park and its tall, pronged, namesake cacti literally surround Tucson. There's the rounded top of the park's cactus-studded Wasson Peak to the west, the park's desert-to-forest Rincon Mountain Range to the east and about a million people living between.
But if you go around Tucson — to its historic barrio neighborhoods, swap meets or hiking trails — and ask people about their neighboring national park, you might be surprised.
"Saguaro High School?"