This area includes rock art made by people who lived there more than two thousand years ago.

VOA: special.2009.04.15

The belayer then gives more rope up to the lead climber as he moves up the rock.

VOA: special.2009.12.09

They collected more than thirty kilograms of rock and soil to take back to Earth.

VOA: special.2009.07.15

Below,the flowing river continued to uncover more and more levels of ancient rock.

VOA: special.2009.10.07

That is more than in past rock climbing studies.

VOA: special.2009.12.09