Thanks so much Ted. The link you included was a webpage I had found the other day but was having trouble finding it again. It is exactly the area we want to go, now we just have to find a starting point to drive to.
Close to you, on the french side of the boarder, there is a very nice old fortification called "Hohkoenigsbourg", one of the highest buildings of that kind in this region. Visiting Colmar is always a good idea.
Between this and Freiburg is a famous wine area called "Kaiserstuhl", where you can find fine white wines.