Bison in Hayden Valley (1) Bison Near Canyon Village (4334) Bison Near Canyon Village (4334A) Elk (1718) Elk (1719) Elk (1720) Yellowstone Lake (2) Bison Crossing The Road (4336) Bison (4335) Norris Geyser Basin Museum (4297) Norris Geyser Basin Museum (4332) Porcelain Basin 360 In Porcelain Basin (1717) Steam Vent (4302) Black Growler Steam Vent (4301) Norris Geyser Basin Museum (4331) Vent & Insect (4330A) Vent & Insect (4330) Crackling Lake (4329) Porcelain Basin (4322) Porcelain Basin (2) Norris Geyser Basin Museum (4296) Thermophilic Colors (4320) Thermophilic Colors (4319) Living Thermometer (4318) In Porcelain Basin (4303) Ledge Geyser & Black Growler (4321) Black Growler & Faint Rainbow (1716) Porcelain Basin (1) Minerva Terrace (3) Minerva Terrace (2) Minerva Terrace (1714) Minerva Terrace (4278) Minerva Terrace (1) Minerva Terrace (4280) Mammoth Hot Springs (4292) Mammoth Hot Springs (4291) Mammoth Hot Springs (4290) Mammoth Hot Springs Boardwalk (4295) Mammoth Hot Springs Boardwalk (4294) Mammoth Hot Springs (4289) Mammoth Hot Springs (4288) Mammoth Hot Springs (4293) Mammoth Hot Springs (4279) Interesting Facts Concerning the Large Inlaid Map… Stuffed Wolf In Visitors Center Exhibit (4257) Stuffed Mountain Lion in Visitors Center Exhibit (… Stuffed Beaver in Visitor Center Exhibit (4259) Some Animal's (not a bear) Poop On The Sidewalk in… Visitor Center in Mammoth Hot Springs (4254) USA Map in Mammoth Hot Springs Hotel (4269) Our 'Alligator Mess' by W.A. West (4255) Mammoth Hot Springs Warning (4253) Mammoth Hot Springs Visitor Center (4272) Mammoth Hot Springs Visitor Center (4252) Fireplace in Mammoth Hot Springs Hotel (4271) Engineer's Office in Mammoth Hot Springs (4266) Engineer's Office in Mammoth Hot Springs (4264) Engineer's Office in Mammoth Hot Springs (4263) Chief - American Bison by Robert Bateman in Mammot… Big Horn Sheep in Mammoth Hot Springs Visitor Cent… Big Horn Sheep In Mammoth Hot Springs Visitor Cent… Phone Booths in Mammoth Hot Springs Hotel (4270) Elk in Mammoth Hot Springs Visitor Center (4260) 1907 Rules & Regulations (4262) Undine Falls on Lava Creek (1710) Tower Falls (4248) Tower Falls (1704) Near Tower Falls (1705)