| Breakfast: ||Breakfast at nearby restaurant.|
| Morning: ||One field day in Yellowstone includes a visit to the Mammoth area including the Albright Visitor Center and Fort Yellowstone. The step-like platforms or terraces of the Mammoth Terraces are formed by travertine or calcium carbonate. The Terraces are in a state of constant change; walking may include several hundred stair steps downhill.
Visit the Albright Visitor Center and Museum, built by the US cavalry during "Fort Yellowstone" times, which includes history-themed exhibits-Native Americans, mountain men, early exploration, Army days and early National Park Service. Also included: predator-prey themed exhibit, Moran Gallery (reproductions of Thomas Moran watercolors), Jackson Gallery (original William Henry Jackson photographs and 1871 Hayden Survey photographs), theater, information desk and Yellowstone Association sales area (good selection of Yellowstone-related books, also prints, notecards, games, films, photographs, maps, etc.)
Yellowstone National Park was established in 1872 and immediately became under threat of exploitation by poachers, souvenir hunters and developers. Civilian superintendents suffered from inexperience, lack of funds and manpower. After fourteen years, the US Army was called on for help and the Cavalry was sent in to protect Yellowstone's resources and visitors. The year was 1886. After troops suffered through five harsh winters in a temporary camp and the realization dawned that no end was in sight, a guard house was built in 1891 to support the Cavalry's mission of protection and management. Clapboard buildings were built in 1891 with more added in 1897. 1909 saw stone buildings built as the fort's capacity grew to 400 men/four troops. The National Park Service was established in 1916 and the Cavalry gave control of Yellowstone back to the civilians; their duty concluded completely in 1918. Fort Yellowstone became the administrative center for the Park.
| Lunch: ||Sack lunches in the Park.|
| Afternoon: ||Field exploration will include a taste of either the Lamar or Hayden Valley; each a vast, wide-open haven for wildlife. Enjoy expanses of open space and expect to see bison, elk, waterfowl, coyotes and more. Consider a magnificent ecosystem and how all its aspects intersect to make a tapestry of life not to be found anywhere else in the nation.|
| Dinner: ||Dinner at nearby restaurant.|
| Evening: ||Free evening to enjoy the grassy, back patio perched high above the mighty Yellowstone River that intersects the town. Often times, a patient search with binoculars reveals elk, deer, geese, sometimes rabbit across the river, sometimes beaver in the river. Take time to stroll downtown and enjoy the flavor of a small, western gateway community.|