Yellowstone National Park was very impressive and truly worth a visit. We did a three day holiday weekend trip to visit Yellowstone National Park and the Grand Teton National Park in October 2010. It was filled with majestic animals, natural wonders and the highest concentration of geothermal activity. They even have their own version of the Grand Canyon and of course, Old Faithful. It was an unforgettable adventure and we hope to return to explore more soon.
