Rodney Tang, left, and Rich Eastland, prepare their equipment in advance of descending over the top of the dam. Preparation and redundancy are important parts of the safety precautions practiced by the team.

Corey Dickson begins a descent on the face of Hoover Dam.

Alex Smith, left, who is not a team member, was assisting the team on this training exercise. Corey Dickson, right, who serves as the team's first responder, based on his paramedic experience, is now recertifying. Both are peering over Hoover Dam to watch their fellow team members as they carry out their inspection duties.

Scott Foster checks on the position of his fellow climbers before climbing down the cliff face.

Nathaniel Gee, Brandon Barrow, Corey Dickson carry out cleaning activities on the rock face near and below the Visitor Center.

Corey Dickson, left, maneuvers himself to a different position on the cliff face, while Nathaniel Gee takes a short break to rehydrate. Staying hydrated is extremely important when working on cliff faces in the summer, since the climbers are exposed not only to ambient heat but also to reflected heat from the rock surfaces.

Brandon Barrow, left, Jonathan Sanchez, center, and Scott Foster, carry out inspection duties checking for loose rocks and other maintenance work.