yell49245 Thermal pool and dark clouds, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49245.html yell49274 Bisons with snowy faces. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49274.html yell49250 West Thumb Geyser Basin in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49250.html yell49317 Lone bison and thermal steam. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49317.html yell49331 Mirror Pool, snow and steam. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49331.html yell49302 Old Faithful Geyser in the winter with moon. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49302.html yell49311 Pine tree and Old Faithful geyser in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49311.html yell49308 Old Faithful Geyser, daww eruption. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49308.html yell49252 Bison and Lion Geyser in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49252.html yell49264 Bare trees and steam in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49264.html yell49307 Old Faithful geyser, moon and clouds. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49307.html yell49309 Old Faithful Geyser at dawn. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49309.html yell49312 Old Faithful geyser plume in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49312.html yell49251 Snow-covered bison in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49251.html yell49305 Plume, long night exposure, Old Faithful. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49305.html yell49306 Plume, Old Faithful geyser, winter night. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49306.html yell49300 Old Faithful Geyser eruption and moon. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49300.html yell49301 Old Faithful Geyser erupts at night. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49301.html yell49303 Night view of Old Faithful Geyser in winter with full moon. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49303.html yell49304 Run-off and geyser, steam obscuring moon, Old Faithful. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49304.html yell49284 Sapplings and burned trees in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49284.html yell49278 Snow-covered trees. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49278.html yell49279 Snow-covered branches. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49279.html yell49257 Tree skeletons in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49257.html yell49319 Wintry forest and steam. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49319.html yell49320 Steam and forest in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49320.html yell49281 Thermal steam along the Firehole River in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49281.html yell49258 Firehole river and bison in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49258.html yell49316 Buffalo herd and Geyser Hill in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49316.html yell49262 Snowy landscape with distant thermal pool. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49262.html yell49255 Winter landscape with thermal run-off. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49255.html yell49254 Castle geyser cone and steam in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49254.html yell49270 Giant Geyser cone and steam in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49270.html yell49267 Hot springs and snow, Upper Geyser Basin. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49267.html yell49259 Upper Geyser Basin in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49259.html yell49265 Thermal run-off stream contrasts with snowy landscape. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49265.html yell49282 Morning Glory Pool, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49282.html yell49283 Hiker at Morning Glory Pool, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49283.html yell49266 Chromatic Spring in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49266.html yell49253 Crested Pool in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49253.html yell49321 Gem pool seen from above, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49321.html yell49261 Hot springs detail. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49261.html yell49327 Mustard Spring. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49327.html yell49325 Frosted tree and thermal pool. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49325.html yell49324 Sapphire Pool in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49324.html yell49330 Tree skeleton and thermal steam, Biscuit Basin. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49330.html yell49333 Grotto Geyser at dusk. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49333.html yell49246 Snow-covered West Thumb thermal basin. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49246.html yell49248 Thermal stream at edge of Yellowstone Lake in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49248.html yell49247 Thermal run-off and snowy landscape. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49247.html yell49244 Steam rising from pool in winter, West Thumb. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49244.html yell49249 Colorful thermal stream and dark clouds, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49249.html yell49243 Thermal pool in winter, West Thumb Geyser Basin. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49243.html yell49231 Park entrance sign in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49231.html yell49349 Forest with snow falling. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49349.html yell49348 Forest in snow storm. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49348.html yell49346 Pine forest in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49346.html yell49345 Trees on edge of Lewis Lake in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49345.html yell49344 Snow-covered road. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49344.html yell49230 Lewis River in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49230.html yell49233 Snowy landscape with waterfall. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49233.html yell49234 Moose Falls in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49234.html yell49236 Lewis Canyon slopes with burned forest, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49236.html yell49237 Burned tree trunks and snow, Lewis Canyon. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49237.html yell49238 Lewis Falls in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49238.html yell49240 Lewis River valley in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49240.html yell49239 Lewis River and falls, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49239.html yell49280 Snow-covered spruce trees. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49280.html yell49341 Close up of tree with snow. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49341.html yell49340 Kepler Cascades of the Firehole River in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49340.html yell49339 Snowy forest and Kepler Cascades. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49339.html yell49285 Herd of buffaloes during snow storm. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49285.html yell49256 Bison moving in single file next to Firehole river, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49256.html yell49263 Bison following warm stream in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49263.html yell49315 Bisons with thermal plume behind in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49315.html yell49314 Bison herd on a warmer patch in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49314.html yell49286 Bison feeding in snow-covered meadow. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49286.html yell49271 Bison crossing Firehole River in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49271.html yell49272 Group of buffaloes crossing river in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49272.html yell49276 Bisons and geyser cone, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49276.html yell49273 Two American bisons in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49273.html yell49318 American bison with snow sticking on face. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49318.html yell49275 Close view of american buffalo in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49275.html yell49313 Snow-covered buffalo standing on warmer ground. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49313.html yell49288 Snow-covered bison walking. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49288.html yell49277 American bison in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49277.html yell49310 Coyote in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49310.html yell49350 Bombardier snow busses being unloaded at Flagg Ranch. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49350.html yell49351 Winter tour snow coaches unloading, Flagg Ranch. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49351.html yell49352 Snowcoaches and snow falling. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49352.html yell49353 Bombardier snow bus. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49353.html yell49232 Travelers boarding snow bus. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49232.html yell49235 Snowcoaches on snow-covered road. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49235.html yell49241 Couple standing in snowdrift next to snow coach. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49241.html yell49242 Snowcoach and trees. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49242.html yell49347 Snowmobiling on snowy day. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49347.html yell49342 Snowmobilers. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49342.html yell49343 Snowmobiles. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49343.html yell49323 Snowmobile riders. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49323.html yell49229 Tourists take pictures with entrance sign in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49229.html yell49338 Tourists on boardwalk in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49338.html yell49329 Large group of tourists in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49329.html yell49328 Tourists walk over snow-covered boardwalk. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49328.html yell49326 Family looks at thermal pool in winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49326.html yell49268 Cross country skiers pass Chromatic Spring. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49268.html yell49269 Skiers and thermal steam. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49269.html yell49287 Skiers and bisons. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49287.html yell49322 Child walking with buffaloes in the distance. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49322.html yell49332 Skier at the edge of thermal pool. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49332.html yell49260 Photographer standing next to hot springs. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49260.html yell49228 Snow coaches parked at Flagg Ranch. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49228.html yell49335 Snow busses in front of Old Faithful Snow Lodge. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49335.html yell49337 Bombardier snowcoaches. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49337.html yell49336 Winter Snowcoaches in front of Old Faithful Snow Lodge. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49336.html yell49334 Icicles, Old Faithful Snow Lodge. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49334.html yell49289 Visitor Center at dusk. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49289.html yell49291 New Visitor Center at night. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49291.html yell49292 Old Faithful Snow Lodge at dusk, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49292.html yell49294 Snowmobiles parked next to Old Faithful Snow Lodge at night. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49294.html yell49296 Old Faithful Snow Lodge at night, winter. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell49296.html