3D topo ridge maps

I have started to do a lot more ridge soaring in the last couple years and
most places I go seem to have very nice 3D topo maps somewhere to look at.
All of these maps appear to have been purchased quite a few years ago. I
have done searches on the internet but have not found anything yet.
I would like to find a source to purchase these maps in the USA, anyone with
any leads please post here or email me at the below address, it would be
greatly appreciated.

Thanks,
Joe Simmers