The AP reports (have you been tracking the latest from the AP on quoting it on blogs???) that officials at Yellowstone have moved a sign indicating the location of the 45 parallel to make it closer to its true location and to improve traffic and safety. Visitors love to take their picture at the sign, so moving it to a turnout provides more and safer parking. It also moves the sign a bit closer to its true location which may be have been further off since those who planted it may have believed the state border between Wyoming and Montana is coincident with the parallel; it is in many spots but not in this area.