My husband and I are planning to fly to LA from Australia in the last week of Feb, stay in LA for 3 days, drive up Big Sur to San Francisco in 1 day, spend 3 days in San Francisco and then drive to Elko for one night, then drive to Yellowstone National Park and stay there for 3 days. We then plan to drive to Glacier National Park and stay there for 3 days before flying back to LAX and then home to Australia. We will be visiting Yellowstone and Glacier in the first week of March 2014 and was wondering if anyone can give us tips re: road conditions and any other tips that might be helpful. Is it even worth visiting these National Parks at this time of year given that it is right out of winter? Any suggestions would be much appreciated as it is our first trip to the US and we are super-excited! Thanks in advance