Man running on steep trail

20 24 years adventure ascending athlete back lit blue sky caucasian color image concentration copy space countryside day determination effort endurance energy environment exercise fitness forest full length growth healthy living hiking hillside journey lens flare low angle view man merlin motion nature one person oregon trail outdoors path people photography rear view recreation remote river rogue river runner running shadow sun sunny trail training vertical young adult adventuresome ascend back lit color colour concentrating daytime development entertainment exercising exertion full body health hill low angle male movement natural negative space one outside person power resolution rising rural sky sport stamina sunshine tramping traveling travelling tree trip twenty walkway water western european white space woods