Skuas. Joinville Island, Antarctica.

Near the K-T, Gubbio, Italy.

Joinville Island, Antarctica

Carpinteria, California.

Joinville Island, Antarctica

Fall colors, salicornia style. Cheesequake Marsh, NJ.

Moraine, Iceland.

Water Quality. Worcester.

Palmer Station, Antarctica

Sunset over the playa, Northern Mexico.

Lake Earl, Crescent City, California

Petrified Forest National Park, AZ

Sheltie for scale. Anza Borrego.

Hutton's unconformity

Carpinteria Marsh, California.

New Jersey jungle. Phragmites marsh, Raritan River, NJ.

Somewhere in Iceland.

Santa Cruz Island, CA

Tufa towers, Mono Lake, California.

Marble headstone and lichen. Maine.

Turbidites, Italy

Gypsum. Italy.

Iced in. Joinville Island, Antarctica.

Anza Borrego

Ojai, California

Saguaro National Park, AZ

Raasay Island, Scotland

Abiqui, NM