Find a Free WeE-Book from TOS nestle somewhere between pages 90-100:
Name: Following the Iditarod. "Mush" along the Iditarod trail with this well-rounded unit study. Follow the Iditarod when it starts March 1
taking sled dogs from near Anchorage all the way to Nome, Alaska . . .
spanning over 1,000 miles in subzero temperatures over some of the
wildest terrain imaginable.