A glorious summer day in Hayden Valley.
Misty sunrise near Yellowstone Lake.
Rose Creek meanders westward thru Lamar Valley in early spring.
Lamar Valley in early spring, looking east.
Not much water flowing over the 300-foot Lower Falls in mid-April. As soon as Yellowstone Lake thaws, the Falls will roar all summer.
A milky blue pool on Mammoth's Upper Terraces.
Ice starting to break up on Yellowstone Lake. There's plenty of snap, crackle and pop as it fractures.
Aspen grove south of Mammoth Hot Springs.
Foggy morning on the Yellowstone River.
First dusting of snow on the Gallatin Range above icy Swan Lake.
At last, just the two of us! After a busy summer, two ravens in their quiet domain.
Thousands of travertine layers! Water flows over orange, green and white cyanobacteria and bacterial mats. The water in Mammoth Hot Springs can exceed 150 degrees and much higher near the vents.
Frosted tree at Grizzly Overlook.
Sunrise from Dunraven Pass
Spring in Lamar Valley
Rustic Falls near Bunsen Peak
Yellowstone's Aspen Curve
Hayden Valley, one of my favorite places
Lower Falls of the Yellowstone -note the people near the brink of the falls in the upper right corner.
Old Faithful, reliable as ever
Reflections of a July sunrise on the Yellowstone River
Simply grand! Grand Prismatic Spring in the Midway Geyser Basin, the largest hot spring in the U.S., measuring 370 feet across.
One of my favorite spots, overlooking the Yellowstone River as it winds thru Hayden Valley with Mt Washburn in the distance.
Morning mist on Yellowstone Lake
Sunrise at West Thumb Geyser Basin
Storm clouds moving in above the Yellowstone River
Lacy ice on Rose Creek
Rose Creek and the Lamar Buffalo Ranch
Winter-frosted cottonwood, Lamar Valley
View of the village from the Upper Terrace at Mammoth Hot Springs
Boardwalk along the Upper Terrace, Mammoth Hot Springs
Gibbon River near Norris Ranger Museum
Trail into Norris Geyser Basin
Bald eagle soars toward the ice of the Lower Falls
Hayden Valley frozen in winter -- hard to remember the green of summer and gold of autumn.
A "sundog" halo surrounds the sun over Swan Lake