There's a lot of it there, but it's hard to extract without modern technology. There's a little peat (arguably the most accessible type of high-energy fuel) left in the British Isles and Finland, but coal is requiring progressively more and more modern effort to extract.
Not really. Wikipedia says that the USGS extimates that "At a price of $60/ton, roughly half (48%) of the coal is economic to produce." Current prices are near $10 a ton so only highly mechanized shallow strip mining techniques are profitable. Coal is about as valuable as other bulk earth products like sand and gravel. 19th century techniques could easily mine most of this coal. It is shipping, not extraction, that determines the price of coal at a given point on Earth. Civilization might need to restart near the mines, but there are still many of those places left.