Well, here are the two that lost my little contest

for which to set as background.
Girls playing in the encampment at sunset

It was tough not to pick this one, but The Fort from Mount Rose at Dawn is just so strikingly beautiful to me. When the computer boots up to that picture first thing in the morning, I'll feel that cold air again, like a "cold slap in the face". This one's also a little dark.

This one is my background at home: Dawn from Mount Rose.

Rosie chose it. I think it's beautiful too, but not necessarily evocative of any memories except maneuvering to get that picture. And racing up the hill in sub-fifty degree, pre-dawn cold. Or 10 degrees C fer you furriners.