| A | B |
| Rocky Mountains | are part of the Cordilleras |
| Cordilleran chain | the longest mountain chain on earth |
| Rocky Mountains | made up of more than 60 mountain ranges and extend approximately 3000 mile |
| Mt. Elbert | in Colorado, the highest peak in the Rockies |
| summit | highest point |
| flora | the plants of a specific region |
| fauna | the animals of a specific region |
| Great Plains | short grasses |
| 6000-9000 feet | ponderosa pines |
| above the tree line | tundra |
| continental divide | a stretch of high land that divides the river systems of a continent |
| headwaters | beginning points |
| 4 rivers that start in the Colorado Rockies | Arkansas, Platte, Colorado, and Green |
| Platte River | tributary of the Missouri River |
| Green River | tributary of the Colorado River |
| Colorado River | flows through the Grand Canyon |
| Columbia River | the largest river flowing into the Pacific Ocean from North America |
| Yellowstone National Park | the oldest national park in the world |
| Yellowstone National Park | has more geysers and hot springs than any other area in the world |
| hot spring | a spring in which the water is above 98 degrees |
| geyser | a hot spring from which columns of boiling water and steam shoot out of the earth into the air |
| Old Faithful | the most famous geyser |
| Steamboat Geyser | the world's largest geyser |
| Mammoth Hot Springs | the most famous hot springs in Yellowstone |
| Yellowstone Lake | the largest high-altitude lake in North America |