A "click beetle", probably of the family Elateridae or Eucnemidae.
Only a few weeks left in summer.
A member of the Copper family - perhaps Lycaena helloides, the Purplish Copper.
A Sphinx month, also called Hummingbird moth, hovers while feeding.
Strymon melinus, the Gray Hairstreak.
Tiger Swallowtail, Papilio glaucus, on a thistle blossom.
Not a bee, but a fly that mimics bumblebees.
Bumblebee at work.
Honeybees at work on sage blossoms.
The approach to Mills Lake in Glacier Gorge, Rocky Mountain National Park. Long's Peak is the squarish dome on the horizon at center, and beyond, Keyboard of the Winds and Pagoda Mountain.
Dawn in Rocky Mountain National Park.
A waterfall in Glacier Gorge, Rocky Mountain National Park.
Near Mills Lake, Rocky Mountain National Park.
Glacier Creek, Rocky Mountain National Park.
View from the top of Mt. Ida [elevation 12,889 ft]: Azure Lake and Inkwell Lake, with Mt. Julian and Terra Tomah rising up behind, Rocky Mountain National Park.
Jewel Lake, Rocky Mountain National Park.
Solitude Lake [elevation 11,400 ft], with Powell Peak in the background, Rocky Mountain National Park.
Looking across Glacier Gorge at Long's Peak, Keyboard of the Winds, and Pagoda Mountain, from near Shelf Lake.
Pica, or Rock Rabbit.
Ptarmigan in Summer plumage.
Elk - they will be losing the velvet on their antlers, and moving lower as rutting season approaches.