the mountains of serrania del hornocal, in northern argentina, on the border with bolivia - formations are made up of 11 different

altitude ancient argentina background beautiful beauty blue bolivia border bright calm clouds colorful colors day detail different environment eroded formation formations geology hill hornocal land landscape layers light loneliness lonely made materials mineral mix mountain mountains nature nobody northern outdoor outdoors panorama peaceful peak remote rock rocks scenery scenic serrania sky slopes summer textured tourism travel uniqness valley view volcanic