Colonel Trent Edwards, 42nd Air Base Wing commander, right, plants a tree at Thunderbird Park with Matt McCullough, Alabama Forestry Commission, and Russell Stringer, city urban forester, marking the 20th anniversary of Maxwell's Arbor Day celebration. The crepe myrtle commemorates Maxwell's designation as a Tree City USA community. (U.S. Air Force photo by Staff Sgt. Sandra Percival)