Observatory access stair - view from the west.

The image is from the control room.  Where the photographer is standing there will be a computer desk with much of the observatory hardware on it.  The observatory is overhead just to the right of the image.

The original plan was to have a ladder going up into the observatory to the right of the doorway at the right edge of the image.  We hit upon the idea of making a stairway during construction  which makes using the observatory a pleasure.  Going up and down a ladder hundreds of times would have eventually gotten to be a hassle.