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Browse a list of photos, pictures and images by alphabet
U1 - Page 1
Underwater photo of gravel bottom of Yellowstone Lake
Unidentified lake & evening sky
Undine Falls
Undine Falls
Undine Falls
Upper Falls
Upper Falls
Undine Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Upper Falls
Union Falls
Uprooted cottonwood floating down the Lamar River
Unknown stream
Unknown Cauldron - Mud Pots, unknown area
Unnamed mud pot - Norris Geyser Basin
Unusual formation (pot) on terraces - Mineral deposits
Unusual formation (pot) on terraces - Mineral deposits
Unusual formation (pot) on terraces - Mineral deposits
Unidentified hot spring - Hot Springs, West Thumb area
Unidentified hot spring - Hot Springs, West Thumb area
Unidentified hot spring - Hot Springs, West Thumb area
Unnamed hot spring
Unidentified hot spring - Hot Springs, Shoshone Lake Geyser Basin
Unidentified hot spring - Hot Springs, Shoshone Lake Geyser Basin
Unknown or unidentified hot spring in the Shoshone Geyser Basin
Unknown or unidentified hot spring in Shoshone Lake Geyser Basin
Unknown or unidentified hot spring in Shoshone Lake Geyser Basin
Unknown or unidentified hot spring in Shoshone Lake Geyser Basin
Unknown or unidentified hot spring in Shoshone Lake Geyser Basin
Unknown or unidentified hot spring in Shoshone Lake Geyser Basin
Unnamed spring southeast of Recess Spring - Hot Springs, Norris Geyser Basin
Unnamed hot spring near Lava Pool - Hot Springs, Norris Geyser Basin
Unnamed spring near Verma Spring - Hot Springs, Norris Geyser Basin
Unnamed spring near Grawler Spring - Hot Springs, Norris Geyser Basin
Unidentified spring along Firehole Lake Drive - Hot Springs, Midway & Lower Geyser Basin
Unknown hot springs - Midway & Lower Geyser Basin
Unidentified hot pool - Hot Springs, Midway & Lower Geyser Basin
Unidentified hot pool - Hot Springs, Midway & Lower Geyser Basin
Upper Terraces above Cedar Spring - Mammoth Hot Springs
Unusual formation - Mammoth Hot Springs
Unnamed geyser - West Thumb Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Union Geyser - Shoshone Lake Geyser Basin
Upper Geyser Basin
Upper Geyser Basin as seen from Observation Point
Upper Geyser Basin in early morning
Upper Geyser Basin as seen from Observation Point
Upper Geyser Basin at dusk
Upper Geyser Basin at dusk
Upper Geyser Basin
Unnamed thermal feature in the Fountain Group - Midway & Lower Geyser Basin
Unidentified steam feature - possibly Sylvan Springs
Unidentified steam feature - possibly Sylvan Springs
Upper Geyser Basin in winter
Upper Geyser Basin in winter
Upper Geyser Basin in winter
Upper Geyser Basin in winter
Upper Geyser Basin in late afternoon/evening in winter
Upper Falls and the surrounding area in the winter
Upper Geyser Basin in the winter with snow
Upper Geyser Basin from Divide Lookout
Upper Slough Creek meadows, looking south
Underwater view of an Indian pond lily (Nuphar polysepalum)
Underwater view of an Indian pond lily (Nuphar polysepalum)
Underwater view of an Indian pond lily (Nuphar polysepalum)
Utah honeysuckle (Lonicera utahensis)
Uprooted lodgepole pine (Pinus contorta var. latifolia)
Unilever intern with Jr Rangers at the Albright Visitor Center at Mammoth Hot Springs
Unilever intern with Jr Rangers at the Albright Visitor Center at Mammoth Hot Springs
Unilever intern with Jr Rangers at the Albright Visitor Center at Mammoth Hot Springs
Unilever intern with Jr Rangers at the Albright Visitor Center at Mammoth Hot Springs
Unloading explosives on Sheep Cliff, to be used to remove unsteady rock after a rock slide
Upper Miller Creek patrol cabin in the winter
Upper Miller Creek patrol cabin in the winter
Upper Mill Creek patrol cabin
Upper Fountain Freight Road over the Firehole River
Utility building adjacent to the original (1897) Haynes Photo Shop at Old Faithful
Unloading trailer with Trail Creek wolves
Unloading wolf shipping containers from plane at the Bozeman airport
Unloading wolf shipping containers from plane at the Bozeman airport
Unloading wolf shipping containers from plane at the Bozeman airport
Unloading wolf shipping containers from plane at the Bozeman airport
USFS plane at Bozeman airport with first shipment of wolves in 1996
Unloading wolf -35 & -36 at Blacktail pen
USFWS Joe Fontaine & Mark Johnson with wolf -9 whose den was near Red Lodge. She & pups moved back to Yellowstone National Park
Unknown man with wolf pups captured in Aprill 1922
Unidentified man with wolf pups in front of the blacksmith shop, pups were captured in April 1922
Uinta ground squirrel at Mammoth Hot Springs
Uinta ground squirrel at Mammoth Hot Springs
Uinta ground squirrel with young
Uinta ground squirrel with young
Uinta ground squirrel in snow
Uinta ground squirrel
Uinta ground squirrel
Uinta ground squirrel
Uinta ground squirrel
Uinta ground squirrel
Uinta ground squirrel rooting through the snow at Mammoth Hot Springs parade grounds
Uinta ground squirrel in the snow at Mammoth Hot Springs parade grounds
Uinta ground squirrel eating in the snow at Mammoth Hot Springs parade grounds
Uinta ground squirrel emerging from hole
Upper Geyser Basin - Firehole River - YELL 10883
Upper Falls of the Yellowstone
Upper Falls of the Yellowstone
Upper Geyser Basin from the vent of Old Faithful Geyser
Upper Firehole, from Old Faithful crater
Upper Falls
Union Pacific Railroad Guide
US Forest Service mule transport in Mammoth Hot Springs
Upper Geyser Basin as seen from Observation Point
Undine Hill Ski Area (last used in the winter of 1991/1992)
Unloading anesthetized grizzly bear from trap & into net
Unloading anesthetized grizzly bear from trap & into net
Unloading anesthetized grizzly bear from trap & into net
Unidentified early visitor & bear
Uncle Tom Richardson serving lunch on a trip to Lower Falls
Upper Geyser Basin as seen from top of hill near Grotto Geyser
Uncle Tom's Trail (wooden stairway into Grand Canyon)
Uncle John Yancy, proprieter of Pleasant Valley Hotel
US Cavalry insignia - -13 pin on hat
US Cavalry insignia pin & hat -7
Upper Alum Creek cabin
USNPS map of Yellowstone National Park
Uniform badge
USGS Geologist pointing to high water mark at gauging station in Gibbon Canyon - Erosion/Geology
Upper Blacktail barn with sage (ground) fire in background
Upper Blacktail barn with sage (ground) fire in background
Upper Blacktail barn with sage (ground) fire in background
Upper Blacktail barn with sage (ground) fire in background
Unidentified fire
Unidentified forest fire in the Upper Geyser Basin
Unknown duck nest
Uhler's Artic butterfly (Oeneis uhleri)
Unidentified deep sea fish
Unidentified deep sea fish
Unidentified deep sea fish
Unidentified deep sea fish
Unidentified deep sea fish
Unidentified deep sea fish
Unique iceberg
Updating the recording charts with time/date marks.
Using the Dobson ozone spetrophotometer to measure the ozone content of the atmosphere by observing 2 ultraviolet wavelengths.
Using an evacuated glass flask to collect air sample to be analyzed for carbon dioxide
Using a hydrographic sextant to position an offshore rock.
Upper reaches of Glacier Bay - looking at Mt
Unidentified mountains
Unidentified glacier in Southeast Alaska
Ultraviolet pyrometer mounted on the roof of the Clean Air Facility.
Using candles for lighting while exploring ice cave
United States flag marks the geographic South Pole.
Using a caterpillar tractor to launch a survey boat
Unloading a Norseman ski-plane at Oliktok Point
Unloading a float plane - Ensign Eugene W
Using a boiler to melt the permafrost for setting a triangulation marker
Using a boiler to melt the permafrost for setting a triangulation marker
Unidentified schooling fish in kelp forest (not coral reef environment)
Underwater equivalent of crepuscular rays illuminating coral reef
Unidentified coral.
Unidentified sponge with hydroid?
Unidentified fish.
Unidentified coral.
Ulua aukea or giant trevally (Caranx ignobilis).
Ulua also known as bluefin trevally (Caranx melampygus)
Unidentified pink colony, 6-inches across
Unidentified
Unidentified
Unidentified crab.
Unidentified crab.
Unidentified crab.
Unusual specimen of cushion starfish, Culcita novaeguineae, more flattened than usual.
Underside of starfish showing tube feet.
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time.
Underwater tape recorders were used to record the number and size of each fish species on a set transect
Underwater tape recorders were used to record the number and size of each fish species on a set transect
Underwater writing slates were used to record the different species adhering to the top, side and interior roof of pipes over time.
Underwater tape recorders were used to record the number and size of each fish species on a set transect
Underwater tape recorders were used to record the number and size of each fish species on a set transect
Unidentified fish on artificial reef during murky period of reduced visibility.
Unidentified species of octopus silhouetted in pipe entrance.
Upper Buzzards Bay just south of the Atlas and Tack Superfund site.
Upper Boulder Creek, above the influence of Iron Mountain Mine
Upper Boulder Creek, above the influence of Iron Mountain Mine
Upper Spring Creek below Stowell but above the influence of Iron Mountain Mine
Upper Spring Creek above the influence of Iron Mountain Mine; note the normal riparian vegetation.
Unloading Spartina alterniflora plants to begin restoration.
Unidentified.
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