i found a cool seed that you spawn in a jungle that is right next to you with a mineshaft exposed and a ravine with also a mineshaft exposed too here is the seed
Here's the Amidst map of "2072456527280347018".
Be aware that, currently, Amidst shows a LOT of false positives for abandoned mine locations.
Also, there is an exposed abandoned mine in the ravine plus several mine entrances visible close by in the Mesa.
There are no dangerous weapons. There are only dangerous people. R.A. Heinlein
If you aren't part of the solution, then you obviously weren't properly dissolved.
If you have questions about the maps I post as attachments or Amidst and the like read this thread:
Using Amidst type programs to map and research Seeds
The latest release of Amidst, version 4.3 can be found here:
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Very nice seed, that's a lot of warm ocean, I might try this one.