The new Keystone Pipeline, Seward, Nebraska

The Keystone XL pipeline at one point was going to run through the sensitive Sand Hills areas near Valentine, Neb. The pipeline was rerouted to the east, so it will not pass through this area at the Minnechaduza Creek. TransCanada has announced that it will change the Nebraska route again. (Michael A. Williamson/The Washington Post)

The Keystone XL pipeline at one point was going to run through the sensitive Sand Hills areas near Valentine, Neb. The pipeline was rerouted to the east, so it will not pass through this area at the Minnechaduza Creek. TransCanada has announced that it will change the Nebraska route again. (Michael A. Williamson/The Washington Post)

VALENTINE, NEBRASKA – JULY 04: The Keystone XL pipeline at one point was going to run through the sensitive Sand Hills areas of Nebraska in the vicinity of Valentine, Nebraska. The pipeline has been rerouted to the east and now avoids the sensitive the Sand Hills, so it will not pass through this area at the Minnechaduza Creek. (Photo by Michael S. Williamson/The Washington Post