The wiki stats where to find ores. There is the term "below surface". What does that mean? Does it mean below water level (which is 60 height) or below the actual surface (for example there is a mountain where you dig in)?
Each mine entrance has a little workshop with workbench, repair table, masonry table and Wainwright Table. I usually use about 10 ramps to go down for easy truck access.
Since gold is more difficult to dig down, I used an elevator and placed a cart on it (wobbly...)
I personally mine big areas and place 5x5x5 storages below there.
I also use a cart to quickly transfer the stack to the storage pile or store directly in the cart. With the exavator, things will change I guess. then I will use trucks below surface to transfer Items, since they hold more then stockpiles.
When they are full, I transfer all the stones to a workbench and turn them into the basic stone, which i then turn into mater...