Written By: Bitumen, dense, highly viscous, petroleum-based hydrocarbon that is found in deposits such as oil sands and pitch lakes (natural bitumen) or is obtained as a residue of the distillation of crude oil (refined bitumen).
  About 3.5 hours-maybe 4 depending on road construction. The hardest part is getting out of Miami to Key Largo-then it's a 2 lane highway through all the keys to Key â¦ West with alot of traffic lights in between. If you are coming from Miami-definitely take the toll road.
This give you an indication of what to expect, but hey forget about getting there as quickly as possible, and slow it right down and do the Florida Keys Driving vacation of a lifetime. We can show you that too. Florida Keys Driving Times. Miami to Big Pine and the Lower Keys 2.5 hours.