I'm climbing down inside a volcano crater and am amazed with the variety of rock/soil colours that are so neatly piled about.

long and soft water drops at the upper Talafofo Falls in southern Guam

Southern Arizona wilderness

This is a highly concentrated salt lake in eastern California that is known for its unique calcareous rock formations (tufas). These structures range from a couple feet to perhaps 15 feet tall and are quite rigid. Most of these structures form on the ground near the shore, but I really enjoyed this grouping when surrounded by water. Plus, the winds coming over a nearby mountain range, produce complex clouds rolling over this area and are usually quite interesting and often stormy in appearance.

Below ground caverns in Arizona wilderness, carved out by centuries of flash flood waters from rain many miles away.

an assortment of brightly-coloured algae reflect in the steam rolling off a large hot spring.

a pleasant combination of rocky cliffs and thick forest in southern Illinois. i was lucky to find a very large fallen boulder to climb up on to get above the brush and capture this view.