Santa Cruz trek in August in the Peruvian Andes. 

Santa Cruz trek in August in the Peruvian Andes. 

Long exposure after sundown of flowing river and grass in the Peruvian Andes. 8.26.11

Long exposure after sundown of flowing river and grass in the Peruvian Andes. 8.26.11

Puna Ibis in flight in the Peruvian Andes. 8.29.11

Puna Ibis in flight in the Peruvian Andes. 8.29.11

A two hour exposure facing directly north started about 25 minutes after sunset creating swirling circle of stars as the earth spins, while just enough light lit up a side of the ragged mountains in the Cordillera Huayhuash of the Peruvian Andes. 8.26.11 © PBBPhoto

A two hour exposure facing directly north started about 25 minutes after sunset creating swirling circle of stars as the earth spins, while just enough light lit up a side of the ragged mountains in the Cordillera Huayhuash of the Peruvian Andes. 8.26.11 © PBBPhoto

Three hikers trek down in La Cordillera Blanca of the Andes Mountains.

Three hikers trek down in La Cordillera Blanca of the Andes Mountains.

Breathless at 4500 meters.

Breathless at 4500 meters.

Lake 69 out of 200 lakes in the Cordillera Blanca. 8.10.11

Lake 69 out of 200 lakes in the Cordillera Blanca. 8.10.11

Oneanta Gorge horizontal. Oregon. 6.8.11 © PBBPhoto

Oneanta Gorge horizontal. Oregon. 6.8.11 © PBBPhoto

A portrait in a green pasture next to a cherry tree in the springtime. Washington State. 05.21.2011

A portrait in a green pasture next to a cherry tree in the springtime. Washington State. 05.21.2011