When many focus on the sun rise , I usually turn around several times during a photoshoot as the back show can be better sometimes. Here the Big Horn Mountains are bathed in the “Belt of Venus” variety of Alpenglow. Just a tick of sun now hitting the high peaks to the left on the “Red Hills”… (their real name)…..It pays to turn around now and then lol… This landscape stretches 130 miles to the peaks across the Powder River Sedimentary Basin (where 30 percent of the electricity generated in the US is powered by the coal from here. ) The Red Hills are 35 miles out at this site.
In taking this image Pink “Belt of Venus” Alpenglow Crack of Dawn on the “Red Hills”, I was at around the same elevation as the saddle to the left of the peak off in the “Red Hills” 40 miles away from the camera.
I wonder why they call them the “Red Hills”? hummm.🤔
The Science of this.
The Light Stuff: The Pink Alpenglow known as “The Belt of Venus” is literally the back show of a sunrise over my shoulder that was s a stunning clear sky yellow Alpenglow scene saturated by an orange and yellow gradient sunrise THROUGH the atmospheric ice present. You’ve seen other photos of that in the wetlands around here just recently posted this morning perhaps elsewhere. This is the back show where only the longer more penetrative red/pink rays of light make it through to the relatively light grey atmospheric ice present and reflects even more red. The red rocks on the hills are also adding to the effect of just the tip of the Mountain is exposed to the sun over the shadow of the horizon behind me. Technically the sun has risen for some places and not for others.
Geology: That is the Little Powder River Valley with the Montana/Wyoming border somewhere in there. That little 6 foot wide river removed all the sediment between here and those mountains all by itself. No kidding. I wonder how long that took a spring flood and yearly freeze thaw cycles to break up the bedrock so the river can haul sand/silt/clay most of the time? 🤔 Cobbles only move during floods. Quartz cobbles are common down in the river valley where they eventually make their way. Being harder they resist erosion, being heavy, they don’t travel very fast and tend to concentrate in the river down there. Quartzite cobbles up here in pure fine grained sandstone country are rare. When I find them, they are affiliated with Dinosaur Bone Deposits and are probably “gastroliths” or stomach stones (like chickens swallowing gravel). Dinosaurs moved literally small boulders around in their stomachs and left them here mixed in randomly where you find dinosaur bones. the same river concentrated both just like it does gold.
This has been an alpenglow day……3 posts in a row anyway… Change up is in order I think📸