scar

Yet I'll not shed her blood; / Nor scar that whiter skin of hers than snow.

Iron and coal were the magnets that drew railways to this land of lovely valleys and silent mountains—for such it was a century-and-a-half ago, before man blackened the valleys with the smoke of his forges, scarred the green hills with his shafts and waste-heaps, and drove the salmon from the quiet Rhondda and the murmuring Taff.

Seeing his parents die in a car crash scarred him for life.