Our first major road trip (over 2000 miles). We are planning on taking 2 weeks. Leaving Upstate NY early May going to Yellowstone then back. Our concerns are the following...road closures (due to high elevation snow and ice), sufficient campgrounds open this time of year (for pop up camper), and the time we have allowed ourselves. If anyone has any info on a trip such as this or one similar we would love to hear it. Thanks!!