Happy 100th Birthday, South Mountain Park & Preserve! Originally called Phoenix Mountain Park, it was formed in 1924 when President Calvin Coolidge sold its initial 13,000 acres to the city of Phoenix for $17,000. Arizona Historymaker Ben Avery is smiling down on this 100 year celebration. More about Ben Avery at www.HistoricalLeague.org/historymakers/Ben-Avery
