 One of the improvements made was the planting and dedication, in September 2002, of a grove of trees on Kingman Island as a memorial to the lives lost in the September 11, 2001, terrorist attacks on New York City and The Pentagon.The United States Forest Service pledged $160,000 to the memorial grove, and environmental groups were working to raise additional money for more plantings and for maintenance.Over the next several years, the city said, it anticipated planting more than 2,000 trees in the grove, adding a memorial marker, and creating a nearby meadow for children to play in.