The A35 runs north-south from the border near Basel to Colmar and then continues on to Strasbourg as a smaller highway.
A36 breaks off from the A35 at Sausheim (about 20 minutes south of
Colmar or 20 minutes north of Basel) and runs east-west. Running west it
will take you to Mulhouse and then Belfort.
But you'll probably want to get your hands on a paper map that you can take with you to Alsace.
One of the best ones is the Michelin Map Series for Alsace and Lorraine which you can take a look at here.
How to Get to the Charming Medieval Villages in Alsace
Of course, there are still all those wonderful little villages in
Alsace and they aren't just off the highway, but it's easier than you
think with this map of Alsace...
The most important
thing to remember is the name of the major villages near the smaller
village you want to visit, because in Alsace and all of France, there
will be signs everywhere.
And these signs at every round about will point you towards different villages.
As long as you know which direction your village is...
Everything is easy.
until you've wandered through the foothills of the Vosges mountains,
winding down the tiny roads through the vineyards, you may not
understand why I want you to get out into the Alsatian countryside.
It's where the magic is for me...
And everyone I've ever taken with me was blown away by its beauty.
not so much about how many places you go and see or all the things that
you go and do in Alsace, it's about how much beauty there is in each
and every place.
And how much time you take to enjoy it while you are there.