A stunning treatment of this landscape with a sensitive use of post capture software.

Memorable !

Awesome. Dierk!

The MM is weirdly superb with clouds. This is lovely.

thanks, Herman, Terry and Jim :)
I loaded one of the original pictures in full resolution with LR4 default development, no further PP here in my flickr:
http://www.flickr.com/photos/dierktopp/8882928296/

you will be surprised, how it looks prior to Nik Silver Efex :)
(right mouse -> original -> to get the full res. image)

Wow, Dierk. Just Wow. Magnificent photo.