1.These are used to relay information about the race...
ham radios telegraphs telephones

2.Progress is tracked on one of these at the Nome headquarters ..
chalkboard map bulltin board

3.The time when a musher gets to a checkpoint is called. ..
"hi there." check-in look in

4.Communiction on the trail is important to keep track of the number of these that each musher has..
dogs bruises sleds

5.Communication is accomplished by ..
officials family members volunteers

6.Information about the race is now available world wide on the ..
newspaper internet t.v.