 Isaac Stevens, governor of the Washington Territory, became dissatisfied with McClellan's performance in his scouting of passes across the Cascade Range.McClellan selected Yakima Pass () without a thorough reconnaissance and refused the governor's order to lead a party through it in winter conditions, relying on faulty intelligence about the depth of snowpack in that area.In so doing, he missed three greatly superior passes in the near vicinity, which were eventually used for railroads and interstate highways.