Don't believe California has fall color? Neither did a Vermont friend, so I took her on a quick trip to Mammoth last year so she could see for herself. She was surprised. Timing and elevation are everything, of course, so if you're planning a trip this year, know that colors are beginning to appear at higher elevations. In fact, Rock Creek may be at its brilliant best this weekend. From our trip last year, here's what we saw along with some early color reports from this month.