adventurous tibetan mastiff and owner trekking along a mountain path with blue skies

tibetan mastiff owner mountain trail watchful eyes scanning environment rugged terrain vast blue sky dog nature strength companionship adventure outdoor doginnature dogandowner mountaindog traildog hikingdog protective doginlandscape doginmountains outdooradventure doginscenery dogandownerhike naturedog doginsky ruggedterrain doginmountain companiondog strongdog trekkingdog mountainadventure