Herself and I are planning a trip to the USA have been reading that many National Parks in America are now overrun with tourists and that a number of parks have limited or eliminated car entry.
We recently saw an article on parks accessible by Amtrak:
https://www.thetravel.com/national-parks-you-can-visit-by-amtrak-train/
Has anyone successfully visited a National Park by train or have an opinion on travel by Amtrak? Is an Amtrak rail pass worthwhile and are there car rental agencies at stations?