S: Yellowstone National Park
FC: Yellowstone National Park
1: Painted Canyon
2: Southern Montana
3: Mammoth Hot Springs Lower Terraces May 15, 2011
6: On May 15th we arrived at Mammoth Hot Springs. We stayed two nights at the Mammoth Hot Springs Hotel and it was very nice. We ate at the hotel dining room and the food was very good. We especially liked the "Yellowstone Caldera" dessert. Mammoth Hot Springs Junction is at an elevation of 6239 feet. I don't know if it was our bodies adjusting to the elevation, or we hiked more than we thought but after 2-3 days both our bodies were aching. After that we either acclimated or we were not as active, because we felt much better.
7: Undine Falls | Our hike to Tower Fall | May 16th
8: Tower Fall
9: The Golden Gate & Rustic Falls | May 17th
10: Frying Pan Spring | Roaring Mountain | Amid Roaring Mountain's steam and sulfur-rich gases, mircroscopic organisms are hard at work. This barren slope, inhospitable to humans, is the perfect home for Sulfolobus acidocaldarius. Billioins upon billions of these thermophiles live here, wearing away the mountain. | Fumaroles - Letting Off Steam Listen intently for the hiss of steam escaping the mountain. Fumaroles are sometimes barely audible, but sometimes roar as steam rushes upward through narrow vents. During the 1800s, Roaring Mountain was, at times, heard four miles away at Obsidian Cliff.
11: Steamboat Geyser - A Minor Eruption When Steamboat Geyser erupts, it can rocket a column of scalding water 90-120 meters into the air - two to three times the average height of Old Faithful. Odds are against your witnessing this drama, however, since Steamboat's major eruptions occur 4 days to 50 years apart. | Emerald Spring | Norris Geyser Basin Back Basin | A hot spring's color often indicates the presence of minerals. In a clear blue pool, the water is absorbing all the colors of sunlight except one - blue, which is reflected back to our eyes. Here in Emerald Spring pool, another factor joins with light refraction to give this spring its color. The 27-foot-deep pool is lined with yellow sulfur deposits. The yellow color from the sulfur combines with the reflected blue light, making the hot spring appear a magnificent emerald green.
12: Cistern Spring Hot Springs create different water temperature environments for living things. Cistern Spring's brown, orange, and green colors represent species of visible algae and bacteria, each requiring a different temperature environment. Only a handful of hard-to-see species of bacteria can live where spring water is near, at, or above boiling. As water gradually cools - by flowing away from its source - it creates lower temperature environments ideal for these colorful species of algae and bacteria. Remarkably, hardy communities of tiny, hot-water-adapted organisms can thrive in temperatures too hot for humans to tolerate.
13: Echinus Geyser Millions of spine-shaped deposits surround Echinus Geyser. Iron, arsenic, manganese, and aluminum are all found in the acidic fountain of water that showers the landscape. With each eruption, these metals help build miniature rust-colored sinter spines.
14: Pearl Geyser
15: Norris Geyser Basin Porcelain Basin
17: Colloidal Pool
18: Crackling Lake | I remember thinking to myself, what an incredible place! It was also a little unnerving how unstable the ground underfoot is. There is literally thermal activity everywhere!
19: Gibbon River Rapids | Chocolate Pots
20: Artists' Paintpots
24: Under proper lighting this spring shows a bluish-green color, hence the name "Beryl". It's activity was greatly altered by the 1959 earthquake. The violent agitation of the water is due to volcanic gases, mostly steam. The temperature of the water is generally a few degrees below boiling. This spring was a favorite of Johns. | Beryl Spring
25: Gibbon Falls
26: Fountain Paint Pot | Silex Spring | Fountain Paint Pot - This vat of bubbling mud contains the perfect mix of ingredients to create mud pots: heat, gases, water, volcanic rock, minerals, acid, and even living microorganisms! Heat-loving "thermophiles" consume some of the gases and help convert them into sulfuric acid. The acid breaks down rock to form clay - clay that mixes with water in mud pots. | Red Spouter - Earthquake's Offspring Before the earthquake in 1959 this area was a grassy knoll.
27: Spasm Geyser
28: Midway Geyser Basin | Turquoise Pool | Opal Pool
29: Grand Prismatic Spring Is the largest and one of the most brilliant of Yellowstone's hot springs. Its massive expanse stretches approximately 200 feet across. The high temperature of its water - 160 degrees - ensures that the spring is often cloaked in steam. Deep beneath, magma from an active volcano heats water that rises to the surface through fissures in the rocks. The result is a hot spring that pours almost 500 gallons of hot water each minute into the Firehole River. Minerals dissolved in the hot water are deposited and grad ually build the gracefully terraced shoulder of this feature.
30: Excelsior Geyser Crater
31: Biscuit Basin
32: Cliff Geyser | Emerald Pool | Black Sand Basin
33: Upper Geyser Basin | Riverside Geyser | Daisy Geyser | Morning Glory Pool
34: Grotto Geyser Geologists believe that hundreds (or thousands) of years ago, Grotto Geyser emerged in a stand of dead or dying trees and, through time, deposited layer upon layer of siliceous sinter (silica) over the stumps and branches.
35: Giant Geyser
36: Chromatic Pool
37: Grand Geyser World's Tallest Predictable Geyser Known for the height and beauty of its eruptions, Grand Geyser's activity is linked with that of nearby geysers. An intricate sequence of events that takes place over 7 to 15 hours culminates in explosions of boiling water and steam from Grand's pool. A full eruption can last from 9 to 12 minutes and reach heights of 180 feet or more.
38: Doublet Pool | Crested Pool
39: Wave Spring | Belgian Pool | Blue Star Spring | Shield Spring
40: Observation Point | Castle Geyser
41: Old Faithful Geyser
42: Old Faithful Inn
44: The Crow's Nest Thought to be the realization of one of architect Robert Reamer's childhood fantasies, the Crow's Nest rises 76 1/2 feet to the ceiling of the Old Faithful Inn. During the early years of the Inn, an orchestra would play in the room at the top and spectators would watch from the various landings as guests danced on the lobby floor below. On August 17th, 1959, an earthdquake measuring 7.5 on the Richter Scale rocked Yellowstone Park. The trembler twisted some of the support timbers for the Crow's Nest, making it unsafe for the number of guests which currently visit the Inn.
46: Grand Canyon Of The Yellowstone
47: Lower Falls North Rim Drive | Lookout Point | Artist Point South Rim Drive
48: Artist Point South Rim Drive | Upper Falls South Rim Drive | Hayden Valley
49: Yellowstone Lake | Near Fishing Bridge
50: West Thumb Geyser Basin | Black Pool
51: Fishing Cone | Kepler Cascades
52: Yellowstone Wildlife | Upon entering the North Entrance we were greated by elk walking through the gate. With this greeting I knew it was going to be a great trip. Seeing all the wildlife was one of my favorite parts of the trip. I could have watched them all day!
53: It never ceased to amaze me seeing the massive bison walking down or crossing the roads.
54: Black Bear | Yellow-Bellied Marmot | Pronghorn | Coyote