@dustypig, For art conservation, aside from Williams which you mention, your daughter could look at Scripps and the University of Delaware. I would agree with @gouf78, however, that conservation, although requiring great technical skill, leans more toward science than creativity.
If your daughter is seriously thinking about taking studio art courses in college, I think it would be a good idea to take some art classes while she’s still in high school. How she feels about the class may depend on the teaching style and personality of the teacher, but I think it would be rare for an art teacher to dictate what students have to draw (or paint or sculpt).
What can be challenging for independently minded students is participating in classroom critiques, both of their own work and of others’, to be able to talk about the theory and concepts behind their work, to reflect and react to criticism, both positive and negative.
Kids unused to verbally explaining and defending their concepts, can get anxious in critiques, but it pretty much comes with the territory for art majors. The sooner they develop a thick skin the better.
Also, most art majors require classes across a range of media, and on the college level, instruction in technical skills can be fairly scant so it’s best to get a foundation beforehand.
Architecture can also be a fine combination of the meeting point between art (creativity) and science (structures). I wouldn’t rush into it though. An undergraduate professional architecture degree requires a highly focused commitment that few 17/18 year olds are prepared to make. A Master of Architecture following a solid liberal arts BA/BS may take longer, but it will achieve the same end.