Complex sentence: Nearby, in Silver Peak, land speculators were driving land prices so artificially high that the 100-stamp mill planned for Silver Peak was relocated and built a mile and a half west, where it became the hub of Blair.
Split into simpler sentences: Nearby, in Silver Peak, land speculators were driving land prices through the roof. The prices were driven so artificially high that the 100-stamp mill planned for Silver Peak was relocated and built a mile and a half west, where it became the hub of Blair.