Yellowstone National Park: Part 2B.  The living creatures of Mammoth Hot Springs

Continuing our tour through the Mammoth Hot Springs. It was a surprise for me to learn that the hot spring colors are produced by living creatures! Thermophiles are microorganisms that thrive in heat. Those living in the hottest water are colorless or yellow.

The people of the Shoshone and Bannock tribes came to Mammoth to collect minerals to make white paint.

Cooler waters contain orange, brown and green thermophiles. Sunlight also influences which colors you may see.

 

 

When hot springs rise up through limestone, they dissolve calcium carbonate. The resulting calcite is then deposited, creating travertine terraces.

These are the Palette Spring terraces coming down from the thermal pool above them.

.To my surprise, there were quite a few birds hopping about, including a chipping sparrow (Spizella passerina) and very colorful yellow-rumped warblers (Setophaga coronata).

 

Mountain bluebirds (Sialia currucoides) were a delight to see.

 

The trail through the Hot Springs complex winds around for more than 2 miles. As I was walking along one area at the bottom of a steep hill, some fellow tourists approaching me said there was a coyote going up the hill further on. I hurried on and caught sight of him as he neared the top.

You reach the Upper Terraces by climbing steep stairs.

There were more trees along the upper pathway with fumaroles (venting steam) nearby.

I did catch sight of some eagles soaring over the large flat springs expanse, but I was happy to go back down to the lower terraces. (Unfortunately, sliding my gloved hand down a wooden railing on the descent gave me a splinter in my palm that I did not manage to get out completely. I had a very sore hand for quite some time: unwanted souvenir!)

I lost track of exactly which places had which names — looking them up on the Internet is not always helpful because the Mammoth features have changed considerably over time. When a hot spring remains dormant for a long time, it will eventually be covered by soil and again create an environment for trees and flowers. To complicate matters, the names of sites have changed over time.

The name Cleopatra Spring has been given to at least three different sites over the years. The original Cleopatra Spring eventually came to be called Minerva Spring. This was, I believe, the current Cleopatra Terrace.

 

When trees are flooded by hot water, they absorb calcium carbonate. This hardens their veins so they cannot absorb “normal” water and nutrients and they harden into what look like petrified trees which may stand for decades.

The hot springs were an early commercialized attraction for those seeking relief from ailments in the mineral waters.

Today, to preserve these unique and fragile features, soaking in the hot springs is prohibited.

Next stop in Yellowstone: The adorable red dogs!

Yellowstone National Park: Part 2A. Mammoth Hot Springs and women in the park

On 19 May 2022, Joan and I had our first full day in Yellowstone National Park (YNP).  This two-part blog covers what we did in the morning: an excursion to the Mammoth Hot Springs, only 5 miles from the Gardiner/Roosevelt Arch entrance. Shortly after passing through the gate, we caught sight of a river running alongside the road. We had no idea that within 20 days, this river would rise and take out part of the road on which we traveled! The recovery effort has also been phenomenal and the National Park Service has done a great job opening up the park again.

About 10 minutes into the park, Joan called out that she had seen a bear! She pointed to my side of the road and, looking up, I saw the bear on a hillside beside some rocks — she was enormous (perhaps the biggest we saw). She was also accompanied by offspring so I began scrambling to get my camera. By the time we got to a pull-off, they had disappeared behind big boulders and did not reappear. She looked somewhat like the (blurry) bear below that we saw another day when we couldn’t stop (rangers were present and moved everyone along). This spotting was certainly an exciting beginning to our YNP adventure.

This sighting taught me that Joan would be an excellent wildlife spotter even when guiding the car along winding roads with sometimes steep drop-offs at the side! It was cold our first day and we dressed warmly – long pants, sturdy shoes, sweaters, warm jackets and caps.

I was glad that we didn’t have to gallivant around in the long dresses and headgear worn by the first women who visited the park. However, the early female visitors to YNP were no “delicate flowers” as I learned from a book of their writings (Sidesaddles and Geysers: Women’s Adventures in Old Yellowstone. 1874 to 1903. Edited by M. Mark Miller).

Carrie Strayhorn wrote, after her 1882 visit to YNP, that both men and women clambered all over the mineral deposits. She and her party traveled about 400 miles on horseback through the park, leaving her with memories of “the charms of nature which go with the wilderness and wonders in all their primal glory.” Strayhorn visited Mammoth Hot Springs and we made that our first stop. (Photo from “Fifteen Thousand Miles by Stage (1911) by Carrie Adell Strahorn)

At the entrance to the Mammoth site, we were met by brown-headed cowbirds (which we have in North Carolina) and black-billed magpies (Pica hudsonia).

The first thermal feature we neared is called the Hymen Terrace. Old records kept at the University of Wyoming Libraries contained an enthusiastic description of this site.

As our day had started off quite overcast, this thermal did not look very colorful or terribly fascinating, so we moved on to walk along the trail.

Off to the side was a structure of some 37 feet in height (11 m) known as the Liberty Cap.

It received this name in 1871 from people who thought it resembled the caps worn by French revolutionaries who fought for freedom and liberty. It looked a bit more interesting when the skies cleared and the sun appeared.

The Mammoth site’s thermals mainly include hot springs and travertine terraces. Joan generally walks much faster than me and I stop often to photograph, so we split up to see the sights.

As Joan took off down a boardwalk, I stopped to photograph my first view of a Clark’s nutcracker (Nucifraga columbiana). I hadn’t expected to see many birds around the thermals so it was a welcome surprise.

 

Hot springs are Yellowstone’s most common thermal features. They comprise pools, sometimes quite deep, of heated water that may be calm and clear or froth like boiling water.

Rain and snow bring water that seeps into the earth where it is heated. It is still not certain which volcanic heat source is responsible for this.

It might be the magma chamber underlying the Yellowstone Caldera or another smaller place nearby. According to researchers, only 10% of the water in the Mammoth area is above ground at any one time.

What looks like steam arises from the hot springs and this seemed to be especially the case when we were viewing them in colder temperatures. Here you can see how our view of the Palette Spring changed as the day started warming up.

 

Read on to find out what causes the colors in the hot springs!

Yellowstone National Park, Part 1. Wonders and delight

Yellowstone National Park (YNP), which is located mostly in Wyoming but also in Montana and Idaho, became the USA’s first national park on 1 March 1872. This year, the National Park Service was gearing up to celebrate Yellowstone’s 150th “birthday” and many visitors were expected.

Unfortunately, in June, storms led to catastrophic flooding of the park. Historic water levels caused mud and rock slides, leading to large-scale destruction of park infrastructure. Many road sections were destroyed and the town of Gardiner, at the North entrance, was devastated just as residents were welcoming the first summer visitors. Fortunately, significant progress has been made by the National Park Service throughout the summer and fall and entry into the park through the North and Northeast Entrance roads was restored in late 2022.

Wikimedia. Yellowstone flood event 2022- North Entrance Road washout. NPS/Jacob W. Frank

In late May, just before this episode of climatic devastation occurred, I had the very good fortune to travel through Yellowstone with my good friend, Joan. I’d visited YNP before, but this was my most enjoyable journey so far. I’d now like to share with you some of the sights we were privileged to see in a series of blogs (sometimes interspersed with some North Carolina wildlife sightings).

Yellowstone, which has a name based on an Indian word, is an area full of wonders and delight. You find yourself traveling through a large volcanic caldera — an immense depression left in the earth after a volcano erupts and then collapses in on itself. You are also in an area with the largest high-elevation lake in North America, a 670-mile waterway which is the longest free-flowing river in the Continental USA, and a spot where you are half-way between the equator and the North Pole. This area has had human occupants for at least 11,000 years according to archeological findings at nearly 2000 documented sites. Tragically, the settlers of European backgrounds and US authorities did all they could to drive the American Indian occupants away. Starting in 1886, when the US Army managed the Park, the US Cavalry patrolled it for 32 years to prevent the 27 modern-day associated tribes from hunting and gathering there. Finally, today, the Indian occupants are being rightfully acknowledged and highlighted in YNP educational and informational materials.In 1926, George LaVatta, Organizational Field Agent, led a group of Indians in costume into YNP. Bureau of Indian Affairs, U.S. National Archives and Records Administration

To start off the blog series, I’ll introduce you to the place where Joan and I stayed: Gardiner, Montana, a town of only some 800-900 residents. The town comprises mostly hotels, shops and eateries. During the COVID pandemic, a couple restaurants burned down and were not replaced. We were there during the week before high season began and only a few of the remaining restaurants were open.

Neither Joan nor I were impressed with the cuisine on offer, so we began getting take-out at the local Gardiner market, a store with a nice broad selection of foodstuffs, some souvenirs and friendly staff who still served customers during a power outage.

While tourist season hadn’t begun, locals did show artwork and signs welcoming visitors.

                           

It was fairly easy to find places as there is only one main road with a limited number of side streets. A couple churches are prominent on the main drag, and one usually has some elk and/or or mule deer occupying space on their grounds.

Look well: there is an elk sheltering under the roof overhang.

  

There were warning signs here and there, reminding us of precautions for COVID and maintaining distance from wildlife, but this was disregarded in town.

   

Having walked through the backstreets to photograph birds, I can attest to the fact that it is not uncommon to turn around and find a deer or elk a couple feet behind you or moving just in front of you.

The Gardiner Catholic priest does attempt to prevent humans from taking up parking space.

A few of the houses along the main road had made some attempts at gardening, protecting plants from browsing mammals and being imaginative with rocks.

  

 

A little lending library was a nice touch, too.

As is the case in the Park proper, a great deal of care is given to avoiding trash on the ground. In 1970, open-pit garbage dumps were abolished in YNP, along with the nightly “bear shows” where visitors sitting on wooden bleachers watched bears eat garbage!

The local people do care about what is happening in the area and made this clear with signs.

     

In the park itself, visitors are warned not to move things around, like this geodetic marker.

$250 fine or imprisonment for disturbing this mark.

Our motel manager was friendly and told us about how the pandemic had made business difficult. In the past, many younger and retired people came to Gardiner and YNP to work in the motels, gift shops and other venues during the high season. I met some nice retired folks and students who had come for this reason (note the traveling home that someone had brought along).  The manager mentioned that there were now far fewer workers, however, and she and her son had been helping clean the motel rooms due to staff shortages.

When entry into YNP through the famous Roosevelt Arch was closed because of the June flooding, Gardiner took another post-pandemic blow. Hopefully, the town residents have been able to recover and can look forward to seeing more business in the seasons to come.

Next up: Visiting our first group of thermal features.

Weather, water, wildlife, and well-being

As I continue to go through my photos from Yellowstone National Park (a lengthy process!), I will post on a few other topics that you will hopefully enjoy. 😊

I just wrote a column for a local newspaper about climate and water. All life on our earth needs water to exist — plants, animals, and humans. Water contributes to respiration, processing nutrition, photosynthesis, regulating temperature and providing a living environment for many organisms. Scientific studies are documenting the benefits for our well-being of spending time in natural areas and beautiful places for this include nature reserves and parks with ponds, wetlands, lakeshores, creeks, and rivers.

The diversity of wildlife around ponds can be delightful, especially in the summertime. You may be lucky to see mammals coming to the shoreline or pond’s edge to get a drink or have the good luck to catch sight of beavers, muskrats, minks, or otters.

Or perhaps there will be a yellow-crowned night heron (Nyctanassa violacea) standing atop a beaver lodge, surveying its surroundings, and taking time to preen.

Reptiles and amphibians clamber onto rocks, snags, branches, and boardwalks to sun. Turtles lay their eggs close to ponds and rivers. At this the time of year, you may come across the remains of leathery eggshells left by hatched turtles (or dug up by predators).

Damsel- and dragonflies, like these amber-winged dragonflies (Perithemis tenera), are interesting to watch; they don’t even need natural water sources but will come to tubs of water containing plants like pickerelweed. Butterflies, such as these cabbage whites (Pieris rapae), “puddle” in mud, carrion and dung alongside creek and pond banks to obtain amino acids and salts in the fluids they suck up.

                 

The bugs do risk ending up as bird food. Northern rough-winged swallows (Stelgidopteryx serripennis) and purple martins (Progne subis) skim above and over the water, snapping up insects as they swoop and soar.

   

The tiny insects on vegetation near water can be remarkably interesting, so taking along a magnifier can increase what you see. Most leaf- and planthoppers are quite small but the glassy-winged sharpshooters (Homalodisca vitripennis) are about fingernail-sized. They consume the fluids in water-carrying tubes in plants, called xylem, and then need to expel excess water from their bodies by shooting out fluid droplets into the air.

   

The vegetation near water can also be fascinating. Indian pipes, also known as ghost plants (Monotropa uniflora), are saprophytes (not fungi) with no chlorophyll. These white, leafless plants obtain their nutrients by tapping into other plants’ resources through mycorrhizal fungi. They usually grow in clusters but can still be difficult to see. My friend Ace spotted one and introduced me to the species, for which I was quite grateful!

Many birds nest near water. Eastern bluebirds (Sialia sialis) and brown-headed nuthatches (Sitta pusilla) will raise young in boxes we put out for them, but they and other birds also like to use holes in snags near or in water. Those nests are much more difficult for predators to reach.

Birds also like to nest near water because they’re primarily insectivores in the spring and summer and there are plenty of bugs in such areas. The only hummingbird nests that I’ve been able to find were all near water; up to 60-80% of their diet comprises spiders and other bugs.

This year, I had the good fortune to see a female ruby-throated hummingbird building her nest and raising her young (previous blog). The first time I visited this wetland after the babies fledged, mama hummer came and hovered about 2 feet in front of me, as if she were greeting me. I’ve seen her on subsequent days as well.

The larger water birds, such as geese and ducks, like to bathe in ponds and rivers.

Other birds enjoy taking a bath in streams and creeks. American goldfinches (Spinus tristis) and house finches (Haemorhous mexicanus) enjoy company with other species. Blue jays (Cyanocitta cristata) like some solitude or sharing space with a fellow jay.

           

Birds living further away from natural water resources also need to drink and bathe and that is where we can help them out. Small birds like Carolina chickadees and brown-headed nuthatches like to drink from the ant guards on which hummingbird feeders are hung.

     

Bird baths can become very popular. Eastern bluebirds and European starlings (Sturnus vulgaris) very much enjoy two of mine in the front yard.

 

House finches, American robins, cedar waxwings, Carolina chickadees and gray catbirds (Dumetella carolinensis) tend to like my backyard baths. And then they appreciate branches and nest boxes as platforms to shake out those water-laden feathers. Birding friend Ylva commented that the vigorous fluttering of this catbird would be worthy of an audition for the musical Cats!

Even if you don’t have a yard, you can put out shallow dishes or plant pot saucers in your outdoor space (steps or patio) as a place for birds to drink and cool off. If you have a balcony, it might take a while for birds to find your water source, but if you stay inside, you may see them come to sip and splash.

If you are luckily mobile, I encourage you to take some outings near waterways. The wildlife and plant diversity can be wonderful and entertaining. And in the meantime, we can all take action to conserve and preserve water:

A surprise at the pond

1 Bynum IMG_0631© Maria de Bruyn res

A combination of abundant vegetation and some type of water — a creek, river, wetland, pond or lake — is one of my favorite types of natural area to visit for wildlife watching and photography. Water attracts wildlife and increases the chance of seeing something unexpected. 

This was the case recently at a local nature reserve. A few days earlier, I’d seen many goldfinches and warblers at one of the ponds, but this day it was very quiet. I descended a small slope to stand on a mudflat and was suddenly surprised by a large splash to my left.

2 Brumley pond IMG_0643 © Maria de Bruyn res

When I looked, I saw a largish head forging across the water in front of me. My first thought was that it was a muskrat (Ondatra zibethicus) as there is no beaver lodge in this enclosed pond.

3 American beaver P8132481© Maria de Bruyn res

Muskrats and beavers look very similar, but beavers (Castor canadensis) tend to be much larger. This was a hefty individual who seemed fairly relaxed as s/he swam along.

4 American beaver P8132423© Maria de Bruyn res

As I watched the mammal swim back and forth for a while, I tentatively concluded that it was a beaver, based on my previous sightings of this rodent species. Still, I wasn’t quite sure and kept hoping that the animal would raise its tail so that I would have a decisive clue to its identity.

Beavers have large flat tails, while muskrats have long, thin tails. Finally, as s/he swam by again, I got a glimpse of the tail for a couple seconds and it was large and flat! Unfortunately, I didn’t get a photo of that (see a previous blog for some photos showing the beaver’s tail).

 

5 American beaver P8132456© Maria de Bruyn res

As I watched and took photos, a couple walked by with their dog and stopped to watch as well. I moved down the path and heard the gentleman exclaim, “Oh, it’s a beaver!” I turned and he explained that he had thought the swimmer was a muskrat, but he had just seen the tail, too.

6 American beaver IMG_0256© Maria de Bruyn res

The aquatic mammal climbed up onto a log for a bit to groom and relax and, as the couple remarked, almost seemed to be posing for me. The beaver kept its back to me most of the time though. 

 

14 American beaver P8132476 © Maria de Bruyn res

I began to walk back down the path in hopes of getting a head-on view if the beaver decided to swim again. S/he did indeed slip back into the water to resume swimming back and forth. And then to my delight, a small head popped up going the other direction!

7 American beaver and muskrat P8132482 © Maria de Bruyn res

For some reason, I just assumed that it was a baby beaver, swimming around under the watchful eye of a parent. The newly arrived rodent seemed to be very intent on eating and dove down into the pond to bring up some tasty vegetation.8 Muskrat P8132671 © Maria de Bruyn res

It then swam over to the mudflat where I had been, and I ventured back there.

9 Muskrat P8132493© Maria de Bruyn res

Moving slowly and maintaining a good distance from the dining animal, I was able to get some good views as it enjoyed its meal.

10 Muskrat P8132618© Maria de Bruyn res

11 Muskrat P8132497 © Maria de Bruyn res

12 Muskrat P8132506 © Maria de Bruyn resWhile the beaver’s fur remained sleek on its head and back after being submerged a while, the little one’s fur stuck together in clumps all over its head and body. To me it looked a bit like a punk teenager — an analogy that undoubtedly came to mind because I was thinking of it as a baby or adolescent beaver.

This was one of the cutest wildlife spottings I had had in recent weeks, and I was thoroughly enjoying it. But I began doubting if this animal was indeed a beaver. I never saw its tail but at one point, I could see some orange teeth that reminded me of beaver incisors.

13 Muskrat teeth P8132647© Maria de Bruyn res

Of course, the diner didn’t care and just kept diving for more veggies to eat. The large beaver appeared to have left in the meantime.

15 Muskrat P8132510© Maria de Bruyn res

It was when I was reviewing identity characteristics of beavers vs muskrats while writing this blog that I ultimately came to a final conclusion about whom I had been watching. This was based on several websites that provided some good ID clues:

Beavers tend to weigh about 35-70 or even up to 100 lbs (15-30 or even 45 kg), Muskrats generally weigh only about 2-5 lbs (0.9-2.3 kg).

Beavers’ ears protrude from their heads as they swim around (first photo below), while muskrats’ ears lie flat (second photo below). Beavers also have larger noses.

16 American beaver P8132453© Maria de Bruyn res

17 Muskrat P8132673 © Maria de Bruyn res

Muskrats dive down to get vegetation from pond bottoms to eat, which my second visitor was very busy doing indeed. Beavers strip bark and leaves from trees and in my experience (having watched beavers eat close by a couple years ago), they can be quite noisy chewers.

18 Muskrat P8132574© Maria de Bruyn res

I’d enjoyed the idea of having seen a parent-and-child beaver duo but, in hindsight, I concluded that I’d been watching a beaver and a muskrat sharing pond space.

19 American beaver P8132475 © Maria de Bruyn res

This was also a very cool event since neither one had been shy. A lack of other human passersby (only the one couple strolled by in the space of almost an hour) may have made them feel comfortable. It was certainly a treat for me!

20 Muskrat P8132665© Maria de Bruyn res

Next up: fateful days for frogs….