Trying to find a place I visited on the German/Austrian border years ago

The roads SW and SE of Garmisch are not dead end. Maybe you mean the Ahornboden aka Die Eng, 30km east of Garmisch. You turn from the road Wallgau - Bad Tölz at Vorderriß south to Hinterriß, which is already in Austria. From there the valley extends in SE direction to the Große Ahornboden.

Yes, that is it! Thank you so much, I cannot wait to revisit that place with her when we go. I remember it being breath-takingly beautiful (as most of Southern Germany and Austria are).

Danke schön!

It's not real close to Garmisch, it's on the western edge of the German Alps, near Bodensee, about 1¾ hr from Garmisch, but you have perfectly described the Kleinwalsertal which is a dead end valley that goes south out of Oberstdorf. It's on the German side of the ridge that forms the border between Germany and Austria, but the Walsers, who lived there, were Austrian subjects so the valley is part of Austria. You can only get to Kleinwalsertal from Germany or by hiking over the mountains from Vorarlberg . Before the Euro, the residents used German Mark and the German Post delivered the mail. It's a beautiful Alpine valley filled with dairy cows which graze on the ski slopes in the summer.

Lee,

Thank you! What a place, I looked it up.

The place that you described was not the one that I was thinking of/visited prior, rather the one that the other person told me about was that place.

However, I will definitely add this to my list! We plan on doing the whole Alpine road while we are there, so much beauty for just two eyes to behold. I have never seen vivid green like the Alps in the summer.

Thank you so much for the tip!

Before the Euro, the residents used German Mark and the German Post delivered the mail.

... and the stamps were Austrian but priced out in deutschmarks. It's a pity that many of those curiosities are gone since the introduction of the euro.

Another Austrian exclave in Bavaria is Jungholz near Hindelang. Children of some adjacent Bavarian villages attend elementary school there whereas children from Jungholz visit the high school in Sonthofen, Bavaria.