Sprawling across thousands of square miles, Yellowstone National Park is home to iconic geyser Old Faithful, as well as free-ranging elk herds, thick forest, and a smattering of grizzly bears. So it's not surprising that it can be intimidating terrain to explore solo.

Yellowstone Safari Tours' park experts know that intimidation factor, but they've managed to conquer it, getting to know Yellowstone and Grand Teton National Park inside and out. They offer guided tours for individuals all the way up to small groups of 15. If you prefer to trek at your own pace, they have prepared self-guided tour packages, packed with park factoids and a route map, that arrive in tourists' email inboxes within 10 minutes of purchase. Print out your package or download it to your mobile device to begin your tour at one of the multiple park entrances.