Transmission towers fade off into oblivion in the layers of hills above Brentwood, CA. This is a segment of a very large panorama from this viewpoint.
Lens is the big 'ol A* 645 600mm f/5.6 on the 645Z. Single exposure with fairly heavy processing to overcome atmospheric haze.
I visited this spot in 2015 too:
flic.kr/p/vtbN5n 