Seeking map of Burgundy

Hi there!
I'm preparing a roleplaying campaign set in Burgundy circa 450 A.D., i.e. the upper Rhine area in the erstwhile Roman province of Germanica.
I have zero mapping experience, though I would probably get CC3 to customize the map -- if I can procure one.
So ... are there any repositories of suitable European maps? Alternatively, I'd be willing to buy or perhaps even commission a map for my game. Any tips on how to go about that?
Best wishes
Johann
Comments
Large overall map and information.
1435-1547 - Consolidation of France
https://www.globalsecurity.org/military/world/europe/burgundy.htmWikipedia page with extensive text and some maps.
Duchy of Burgundy - Wikipedia
https://en.wikipedia.org/wiki/Duchy_of_Burgundyside view of the geology, wine producer page.
Burgundy Has Always Been an Area of Passage
https://www.burgundywine.com/About-Burgundy/Its-GeologicalThe others I found were later centuries. I searched for 'Burgundy map 5th century'.
Hi @Johann !
My recommendation would be to try to see the Barrington Atlas of the Greek and Roman World (Wikipedia link). This has details on the landscape and landforms in contour maps and text descriptions, with lists of identified places known to have existed in specific periods (including late antiquity, which is where c.450 CE would fall in their categorisation). Where this can be established, changes in landforms (coasts and river courses primarily) have been allowed-for, though I don't think the area of Germania Superior that you're interested in features in that too much, as little work has been done on things like the ancient river courses in this area, unfortunately.
Thanks for the pointers, JimP and Wyvern!
You're welcome.