We took this half-day tour in the morning of the first of 4 days we spent in the Tetons and Yellowstone. Our guide was very informative about the geology, geography and human history of the region. She spotted wildlife I would have missed, over and over again. It was the luck of the draw that we spotted no bears, wolves or bison on this particular trip. However we saw prong-horned deer, a young male moose, a large herd of elk (harem, male and young), beaver, eagle, grouse, osprey, pelicans...Pelicans, from Florida, Pelicans that spend the summer in the Tetons. Who knew? We spent 3 1/2 days more in the Tetons and Yellowstone on our own and would not have noticed as much or appreciated as much had we not taken this tour! Highly recommended!