As all the other sunset photographers were packing up for the night, I was just getting started. This is the scene last night, with the waxing Moon hanging over the moonscape of Dinosaur Provincial Park in southern Alberta.

I took this in deep twilight, when the sky is tinted with subtle colours complementing the earth tones of the landscape below.

Dinosaur Park is the world’s best repository of late Cretaceous fossils, being unearthed as the terrain made of ancient volcanic ash erodes away with every rainstorm. Though the formations date from the Cretaceous some 70 million years ago when this area of Alberta was a bayou-like swamp, the badlands landscape we see today was created at the end of the last ice age when glacial floods poured over the landscape, carving the channels occupied by rivers today, like the Red Deer River that flows through Dinosaur Park.

It’s a favourite spot of mine, just an hour east of where I live, to shoot sunsets and moonrises, and twilight landscapes like this one.

— Alan, August 7, 2011 / Image © 2011 Alan Dyer