Wind, Water, Rocks and Gravity

The HooDoos in Drumheller. Don't let this shot fool you; the place was swarming with humans.

In the badlands, ancient glacial melt waters carved out a barren valley exposing a hundred million years of erosion and deposit.

In the mountains, modern glaciers are engaged in the same project.

The Natural Bridge on the Kicking Horse River: once a waterfall, now a torrential chasm, eventually a low rapids and then, if there is still water flowing, a broad pool.

Takakkaw Falls in Yoho National Park: seasonal glacier melt slowing working its way through the mountain.