A mountain biker rides off a homemade jump in the woods near Cabin John, Maryland, United States of America, North America

16 17 years teenager teenage boys one person people color image horizontal outdoors day cabin john forest tree maryland usa north america travel destinations travel one teenage boy only teenagers only nature autumn fall bicycle mountain biking mountain bike cycling recreational pursuit sport leisure activity fish eye lens bicycle helmet safety protection pants jacket trees travel destination tourist destination tourist destinations teenage boy boy male males teenage teenagers teen teens person outdoor outside one person only 1 person 1 person only forests daytime boys child children kid kids bike bikes bicycles cycle cycles transport transportation autumnal 15 16 15 to 16 15 16 years 15 to 16 years 17 18 17 to 18 17 18 years 17 to 18 years