I lived within a 90 minute drive to Yellowstone and since we knew we'd only live there for a short time, (5 years), we went to Yellowstone constantly and I know it like my own neighborhood. Bears and moose are very dangerous, bison are unfriendly and huge. Never saw even one snake ever. Watch out for the hot geysers, stay on the paths. There are forest fires constantly so they close the roads all the time. Go out at dusk to see the animals.watch out when walking on the roads. I worked in the hospital and a mirror on an RV killed someone while walking. Drive through the loops and see the Grand Canyons of the Yellowstone, Cody WY and also Jenny Lake.