Dune 45, Sossusvlei, Namibia

DECEMBER 2006 – A hiker walks along the ridge of the giant Dune 45 at the Sossusvlei area in Namibia. … More

Mesquite Sand Dunes, Death Valley, CA

SEPTEMBER 2003 – The Mesquite Sand Dunes of the Death Valley National Park, seen from Highway 190 in California. Photo … More

Warthog, Kruger National Park, South Africa

NOVEMBER 2011 – A warthog stands in the green grass of the Kruger National Park, South Africa. © Mark Zanzig/zanzig.com

Balanced Rock, Utah (I)

SEPTEMBER 2003 – The Balanced Rock is one of the iconic rock formations of the Arches National Park in Utah. … More

The Road Ahead, Death Valley

SEPTEMBER 2003 – Highway 190 in the Death Valley National Park in California. Photo © Mark Zanzig/zanzig.com

Bryce Canyon National Park, Utah (III)

SEPTEMBER 2003 – Bryce Amphitheater, seen from the Lower Inspiration Point at the Bryce National Park, Utah. © Mark Zanzig/zanzig.com

Zion National Park, Utah, USA

SEPTEMBER 2003 – The Zion National Park in Utah offers unusual views across checkered rock surfaces that are situated along … More

Giraffes at Waterhole, Namibia

NOVEMBER 2006 – A group of five giraffes at the Chudop Waterhole of the Etosha National Park, Namibia. © Mark … More

Big Mama Dune, Sossusvlei, Namibia (I)

DECEMBER 2006 – View of the ‘Big Mama’ dune at the Sossusvlei area in Namibia. © Mark Zanzig/zanzig.com

Columbia Icefield, Rocky Mountains, Canada (III)

AUGUST 2002 – Hikers walk on the hiking trail that leads up to the Columbia Icefield and the Athabasca glacier … More