I understand the "Words blotting out the geography" assumption, and as I measured the size of the tract of land, I thought that perhaps you had made that very assumption.
In the case of Stonepike (Which I think is actually supposed to be "Stonespike"), the mountains are completely surrounding the words, so I think the mountains are supposed to be inside. Also, "Rivenblight" is the 'severer' in this case, not "Silverwood". Also, note the hill just below Rivenblight. That implies to me that this is a hilly region, not a forested one.
What if...
300 years ago, the forest of Silverwood was much larger than it is now, and the barren region near Rivenblight was completely covered in forest except for a dirt road cut through by small populations of humans. Then the Rivenblight catastrophe occurred, sending shockwaves through the earth for miles, severing the roots of all the trees in that horizontal stretch.
Now, 300 years later, the Silverwood, once a magnificent forest with no interruptions for miles, has been greatly reduced in size around the edges, and the middle region, now sparsely covered with young trees among the hollow husks of dead trees, is nowhere near full recovery.
Cartographers cannot agree what to name the now separated forested regions. The elves wish to respect the old ages and continue calling all the forests "the Silverwood". Newer, younger humans are beginning to name the various patches of forests according to their local names. This "cartography war" has been ongoing for three centuries, and slowly, the humans are winning.
Should I make a proposal out of this or something? =P