Union Pacific and Norfolk Southern are confirming they're in merger talks that would create North America’s largest railroad, stretching service from East to West Coasts.

Union Pacific and Norfolk Southern confirmed this morning that they are engaged in advanced merger discussions that would create the first U.S. transcontinental railroad. “There can be no assurances as to whether an agreement for a transaction will be reached or as to the terms of any such transaction,

A combination could create the largest rail operator in the country with a sprawling rail network spanning the continent.