November - May |
Elk commonly seen at lower elevations on the East Side. |
March |
Mountain Bluebirds return. |
May - June |
Bird migration. |
| Elk calves and bighorn lambs born. |
| Wildflowers in bloom at lower elevations. |
| Tundra flowers begin blooming. |
July |
Wildflower season peaks. |
August |
Colorado columbines and other late season flowers still in bloom. |
| The Elk rut begins. |
| | Bird migration. |
September-October | Elk rut peaks. |
| Bird migration continues. |
| Aspens turn color. |