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.
MapQuest gives the estimated driving time as 3 hours and 41 minutes.^^^To improve on this you can definately get from Orlando to Miami in around 3 hours if you do the following:*consistantly stay at 80 mph for the whole trip*no stops and if so, very brief*avoid coastal urban hubs and traffic- you caâ¦.