Combat Center families enjoy a ride on a miniature train through Lincoln Military Housing Athletic Field parking lot during the Earth Day Extravaganza, April 24, 2015. The event also provided a live performance from local band Desert Soul. (Official Marine Corps by Lance Cpl. Thomas Mudd/ Released) - Combat Center families enjoy a ride on a miniature train through Lincoln Military Housing Athletic Field parking lot during the Earth Day Extravaganza, April 24, 2015. The event also provided a live performance from local band Desert Soul. (Official Marine Corps by Lance Cpl. Thomas Mudd/ Released)