I have been going to Mammoth from the LA area on a regular basis since 1978 and Lone Pine, Independance, Big Pine and Bishop have well marked speed limits. The CHP does enforce the speed limit in the Towns but is very leneant away from the towns. By lenient I mean 65 to 70 is usually permitted. In the towns be careful. It seems that the CHP has backed off on strict enforcement in the last ten to fifteen years. The only really tricky place I've found is S/B on 395 entering Bishop just past the Piute Palace the speed drops to 35 and then after about three blocks it goes back to 45. Too many t-bone accidents at the traffic signal in that streach. I've been driving this streach a few times a month since they changed the speed limit and never seen a CHP, not even this past Memorial Day week end. (2011)