Image source: Wikimedia.
There seems to be a few places in the world where amber (fossilized tree resin) can be found in large quantities:
Amber can be found in many places around the world including Northern Myanmar (Burma), Mexico and the Dominican Republic, but 90% of the worlds supply comes from the Baltic Region.
Amber for Sale (commercial site)
I'm curious about what aspects of these sites give rise to so much amber, unlike most places in the world.
Question: What geographical features facilitate amber fossilization?
I would guess there were certain resin-producing trees in those areas, while in other areas the trees didn't produce (a sufficient amount of) resin. However, there seems to be more to the story: given that exposed amber degrades, the amber would need to be prevented from degrading.