Monday, July 30, 2018

Dakotas Trip -- Wind Cave and Mammoth Site


American Bison, Wind Cave National Park
Caty and I took a little trip in late July to visit some new National Parks (and a new state – North Dakota) -- for her.

Me in 2006
It also gave me a chance to better explore Theodore Roosevelt National Park, which I had briefly visited in 2006 when I went to my 50th state – also North Dakota. 

Our itinerary included Wind Cave National Park in South Dakota, Theodore Roosevelt National Park (North and South Units) in North Dakota, Knife River Indian Villages National Historic Site in North Dakota and Badlands National Park in South Dakota. 

As it turned out, we were also able to visit The Mammoth Site in South Dakota and Agate Fossil Beds National Monument in Nebraska. It was a really fun trip with more geology and paleontology than wildlife.

Wind Cave National Park
We started out on a Friday, driving through Wyoming to Hot Springs, South Dakota. Our first stop was Wind Cave National Park, which is 10 miles north of Hot Springs. Established in 1903 by President Theodore Roosevelt (he plays a big role in this vacation), Wind Cave was the seventh U.S. National Park and the first cave to be designated a National Park anywhere in the world. 

"Popcorn," photo taken in 2006
Unlike most caves you may have visited, Wind Cave is primarily dry with no stalagmites or stalactites. Instead, it is known for containing about 95 percent of the world's known displays of a very rare calcite formation known as boxwork. 

Boxwork
It is also known for frostwork, formations that look like ice ... ... and dogtooth spar that looks like, well, dog’s teeth.

Frostwork; photo: National Park Service
Basically, a three-dimensional maze, Wind Cave is the densest (greatest passage volume per cubic mile) cave system in the world -- very much like a giant rock sponge. 
The cave is currently the sixth-longest in the world with almost 150 miles of explored cave passageways and most likely many more unexplored passageways.

Early Euro-American settlers and the Lakota, Cheyenne and other Native American tribes who traveled through the area were aware of the cave's existence.

The Lakotas believed it to be the place where their ancestors emerged from the underworld when the world was created. But there is no evidence that anyone entered it before 1881, when the brothers Tom and Jesse Bingham heard wind rushing out from a 10-by-14-inch hole in the ground. 

According to the story, when Tom looked into the hole, the exiting cave air blew his hat off of his head. When he later tried to recreate the event, the cave sucked his hat in. That’s because air continually moves in or out, equalizing the atmospheric pressure between the cave and the outside air. When the air pressure is higher outside, air flows in; when the air pressure is lower outside, air flows out. That’s why it is called Wind Cave.

Alvin; Photo: NPS
From 1881 to 1889, few people ventured far into Wind Cave. Then, the South Dakota Mining Company hired Jesse D. McDonald to oversee their "mining claim" on the cave site, although it is unclear whether they actually thought there were minerals or they wanted a jump on tourism. When no valuable mineral deposits were found, the McDonald family began developing the cave for tourists.

Jesse’s son Alvin (age 16 in 1890) took the most interest. In addition to leading tours, he extensively (almost obsessively) explored the cave, creating maps and keeping a very detailed diary.

By 1892 the cave was open for visitors, who followed a guide and each carried a lantern-like device consisting of a candle in bucket or just simply a candle with a reflector. 

The standard tour fee was apparently $1.00, a significant sum of money at the time. Early tours were physically demanding and sometimes involved crawling through narrow passages. Even today’s tours pass through some rather narrow areas (and some tours still require crawling). Unlike Mammoth or Carlsbad, Wind Cave doesn’t have many huge chambers.

Early tour; Photo: National Park Service
Caty and I took the Natural Entrance Tour, which is actually somewhat of a misnomer. Yes, you do visit the small natural entrance where Tom Bingham lost his hat, but you enter through a man-made portal and walk down almost 300 man-made steps to the middle level of the cave. Wind Cave's famous boxwork is abundant throughout this trip. We returned to the top via elevator.

Left, natural entrance; Photo: National Park Service; right, elevator exit
Other tours include the Garden of Eden Tour, which enters and leaves by the elevator and visits the upper level (I did this tour in 2006); the Fairgrounds Tour, which enters and exits by elevator, explores the upper and middle levels and includes 450 stairs along the route with one flight of 89 steps going up; the Candlelight Tour, which visits a less developed, unlighted section of the cave where each participant carries a candle bucket; and the Wild Cave Tour, which includes crawling through less developed areas. Fees range from $5.00 to $30.00 per person, depending on the tour and the participant’s age.

Our tour was fairly easy, but you had to make sure not to bump your head.

Overhanging rock
Boxwork, which was first discovered in Wind Cave, was created when gypsum and anhydrite filled small cracks in softer bedrock. Acidic water weakened the bedrock, allowing it to weather faster than the calcite, resulting in intersecting fins that protrude from the surrounding rock. It is extremely fragile and is, therefore, for viewing, NOT touching. Early tourists used to snap off pieces for souvenirs so it is obvious why this cave needs protection.

Boxwork
Above ground, Wind Cave National Park includes the largest remaining natural mixed-grass prairie in the United States. 

Wind Cave National Park
The Wind Cave Bison Herd is one of only four free-roaming and genetically pure herds on public lands in North America (the other three herds are in Yellowstone, the Henry Mountains in Utah and on Elk Island in Alberta, Canada).

American Bison
It was a nice visit. We contemplated also visiting nearby Jewel Cave National Monument but decided to save that for another time. We had other things to see.  

The Mammoth Site
While in Hot Springs, we visited The Mammoth Site, a cool private educational facility and active paleontological excavation site. 

Worth seeing
I had visited The Mammoth Site by myself on a trip to visit my friend Becky in South Dakota in 2012 and I wanted to share it with Caty.

The Mammoth Site encloses a Pleistocene-era sinkhole that contains one of the greatest concentrations of mammoth remains in the world, including 59 North American Columbian Mammoths and two Woolly Mammoths. As a result, most of the focus is on the huge Columbians.


Beauty, an almost intact Columbian Mammoth skull
Columbian Mammoths inhabited North America as far north as the northern U.S. and as far south as Costa Rica during the Pleistocene epoch. Reaching 13 feet at the shoulders and 10 tons (22,000 lbs.) in weight, the Columbian Mammoth was one of the largest land mammals ever. It had long, curved tusks and four molars, which were replaced six times during its lifetime. It evolved from the even larger Steppe Mammoth, which entered North America from Asia about 1.5 million years ago. Pygmy Mammoths, whose remains have been found exclusively on the Channel Islands of California evolved from Columbian Mammoths. The closest extant relative of the Columbian and other mammoths is the Asian Elephant.

Columbian Mammoths; Photo: National Park Service
The Columbian Mammoth preferred open areas and fed on sedge, grass and other plants. It did not live in arctic regions, which were instead inhabited by Woolly Mammoths. 

Mammoth teeth
The ranges of the two species overlapped. For a few thousand years prior to their extinction, Columbian Mammoths co-existed with Woolly Mammoths in North America. Genetic evidence suggests that they interbred.

Paleoamericans -- the first humans to inhabit the Americas -- hunted them for food, used their bones for making tools and depicted them in art. 

The Columbian Mammoth disappeared at the end of the Pleistocene around 11,500 years ago, most likely as a result of habitat loss caused by climate change, hunting by humans or a combination of both.

Back to The Mammoth Site: why are so many mammoths – all male so far – found in this one site? During the Late Pleistocene, a steep-sided sinkhole about 65 feet deep and 120 feet wide at the surface formed when a limestone cavern collapsed. It filled with warm water percolating up from below the earth’s surface, which facilitated the growth of plants around the edges.

Headless Columbian Mammoth skeleton
Enticed by this warm water and pond vegetation, mammoths entered the pond to eat, drink or bathe. Because the steep Spearfish Shale sides were very slippery, mammoths were sometimes unable to climb out of the sinkhole. Trapped, they drowned in the pond or died of starvation or exhaustion.

Multiple carcasses
Observations of modern elephants' matriarchal societies, in which young male members are often expelled, have led scientists to conclude that the mammoths found at The Mammoth Site were inclined to the type of risk-taking behavior common in young males that led to their entrapment.

Size comparison chart
The hole slowly filled with silt over a period of 350-700 years, burying and preserving the bones. 

Eventually the sinkhole filled completely and the artesian spring diverted to the lower elevation of Fall River as it cut deeper in the valley floor. 

Over thousands of years, the "hardened mud plug" inside the sinkhole remained while the surrounding sediment eroded, turning what used to be a sinkhole into a hill.

In 1974, a construction worker unearthed bones while the area was being prepared for a new subdivision and his son recognized one of the finds as a mammoth tooth. Landowner Phil Anderson agreed to further investigation, and a complete skull and tusk were found. Anderson sold land containing the bone bed and mineral rights at cost to a newly formed The Mammoth Site nonprofit organization that is now a museum and a National Natural Landmark. It is also a very active excavation site.

Excavation tools
In addition to mammoths, the site also yielded the remains of Giant Short-Faced Bears, Shrub Oxen, American Camel, Llama, Wolves, Coyotes, Birds, Minks, Ferrets, Prairie Dogs, Voles, Moles, Clams, Snails and Slugs. 

Giant Short-Faced Bears, one of the other major finds at The Mammoth Site, were the most common early North American bear and one of the largest known terrestrial mammalian carnivores that has ever existed. They were tall enough to look a man in the eye, perhaps standing as tall as 12 feet.


Giant Short-Faced Bear skeleton
Giant Short-Faced Bears first appeared during the middle Pleistocene in North America, about 800,000 years ago, ranging from Alaska to Mississippi and it became extinct at the same time as Columbian Mammoths. 

Chart: Wide Open Spaces.com
Its name derives from its disproportionately short snout, compared to other bears. Long legs enabled it to run at 30-40 mph, allowing it to run down herbivores, such as wild Horses and Saiga Antelopes, earning it the name, "running bear." 

There is a lot of debate about whether such a large animal could run long enough to hunt that way. A 2010 study concluded that the species was neither a super-predator nor pure scavenger but an opportunistic omnivore like modern Brown Bears.

The Bones found at The Mammoth Site are real bones, not mineralized bones where the original organic material has been completely replaced. As a result, they are very fragile.


Beauty
Initially, The Mammoth Site sinkhole was estimated to be about 28,000 years old based on the type of remains and radiocarbon dating. Uranium dating yielded much older results, putting the bones at 128,966 B.P.

When Caty and I first pulled up to the site, it looked so different that I questioned my memory. When I first went, it was pretty rustic with a corrugated metal enclosure over the dig and outside bathrooms. Now, it has a beautiful Visitor Center and Theater (with indoor plumbing). When I first went, I walked through by myself. This time, Caty and I took a tour led by a young paleontologist.

Mammoth Site; photo taken in 2012
If you are heading to South Dakota, stop at the Mammoth Site. It is worth it. For more information about tours and education programs, click here


Trip date: July 20-25, 2018

Sunday, July 29, 2018

Tennessee and Oklahoma


Pinson Mounds State Archaeological Park, Tennessee
See Rock City Barn
We spent a night in Chattanooga, Tennessee, which is my Mom’s hometown. Chattanooga is famous for two rather kitschy attractions – Ruby Falls and Rock City. Rock City did not rise to iconic status because of what’s there (ancient rock formations, native plant gardens, a "See 7 States" panoramic view, Fairyland Caverns and Mother Goose Village on top of nearby Lookout Mountain). 

Photo: Rock City
Rather, it became famous because of how it was marketed.

In 1935, Depression-weary Americans were rekindling their love affair with the automobile when Rock City Founder Garnet Carter turned some country barns into billboards that spread the word about the attraction's charms. When official barn painter Clark Byers retired in 1969, he had painted some 900 barns in 19 states.

Photo: Nooga.com
The usual arrangement was that the property owner got his barn painted for free plus he received free passes to Rock City and promotional items (including Rock City thermometers) for the use of the barn. Those who didn't need thermometers might be paid a modest sum of $3.00.

Map: Rock City
President Lyndon B. Johnson's highway beautification movement changed all that. 

Roadside signs became eyesores and billboard-banning legislation nicknamed the "Ladybird Act" put many of Rock City's rooftop messages out of commission. 

In Tennessee, some of the remaining painted structures are now deemed historic landmarks. But, there are very few left and several we tried to see after consulting the map on the Rock City website were not there.

We did see some pretty scenery along the Tennessee River and found a pair of multi-ethnic vultures – one Turkey and one Black – sharing a lamppost.

Turkey Vulture and Black Vulture
A Big Disappointment
Our next stop was something Scott had been wanting to do for quite some time – and a major disappointment. Scott is a big fan of the American Pickers show on the History Channel. The founders/stars have two stores – the original in La Claire, Iowa, and a second in Nashville, Tennessee. Twice we have planned to go, but decided it wasn’t worth the drive. So, this time, when Scott started talking about it again, I said that we needed to do it. So, we drove to Nashville.

Called Antique Archaeology, the store is in the massive early 20th Century Marathon Automobile car factory. 

Marathon Motor Works Building; Photo: Scott Stevens
It looked promising – a huge old building that could house tons of interesting stuff. I was afraid we’d end up being there all day. But, that was not the case. 

Photo: Scott Stevens
The Marathon building is a touristy “mall” with lots of shops (and, I presume, eateries) in it. 

The Antique Archaeology store is small and has very little “picked” merchandise. Rather, it’s full of tee shirts, hats and similar tourist crap. It does have a few cool things, but almost all of them bear "not for sale; part of a private collection" tags. 

We felt cheated. 

We drove all that way for a tee-shirt shop! 

Later, we read some TripAdvisor reviews that pretty much confirmed our experience. It seems that the pickers mainly pick for themselves or for private collectors. Very little is sold in the shops. 

Never again! 


We were out of Nashville and back on the highway within 30 minutes.

Pinson Mounds State Archaeological Park
Our next stop was the Pinson Mounds State Archaeological Park, which comprises a prehistoric Native American complex that includes 17 mounds, an earthen geometric enclosure and numerous habitation areas, was most likely built during the Middle Woodland period from 001-500 AD. The complex is the largest group of Middle Woodland mounds in the United States. 

Pinson Mounds State Archaeological Park
It is similar to Poverty Point National Monument in Louisiana, which we visited a few years ago.

It was extremely hot when we arrived, so we didn’t explore the entire complex. We visited the museum, which is built to resemble a mound, and contains many of the items that have been excavated from some of the mounds.

Pinson Mounds Museum
Many are burial mounds and, as such, contain a number of artifacts, including carved dog’s teeth ornaments. 

Pinson Mounds Museum artifacts
The Pinson Mounds complex covers approximately 400 acres and contains at least 30 mounds, 17 of which have been identified as being completely or partially constructed by prehistoric peoples. The mounds range in height from the prominent 72-foot Saul's Mound to barely noticeable rises.

I climbed up Sauls' Mound at the center of the complex. Named after property owner John Sauls, this mound is the second-highest prehistoric mound in the United States. It is rectangular in formation, with each corner aligned with one of the four cardinal directions, leading scientists to believe that it was ceremonial in purpose. 

Sauls' Mound
The eastern and western sections of the complex are roughly equidistant from the Inner complex, although the alignment is not exact. Mound 29 in the eastern section is aligned with Sauls' Mound in the direction of the equinox sunrise and Mound 28 is almost aligned with Sauls' in the direction of the summer solstice sunrise. To date, no mound has been found in the direction of the winter solstice sunrise.

Trail to Sauls' Mound
After that walk, I was dripping wet, so I gave up on further exploration – despite the loud chirping of (primarily invisible) birds. I saw only a few juvenile Chipping Sparrows.

Juvenile Chipping Sparrow
The land used to be owned by Native Americans. After the Chickasaw Nation ceded much of West Tennessee in 1818, land speculator Joel Pinson "discovered" the complex while surveying the area. When local journalist J.G. Cisco began writing about the mounds in the late 19th century, the Smithsonian Institution became interested and, in 1916, sent archaeologist William E. Myer to investigate the site. Myer suggested that the entire complex was built according to a master plan and created a map for the site. In 1947, the Tennessee Division of Forestry purchased the western section of the Pinson site. Excavation has been ongoing since that time, with new discoveries still being made.

Chickasaw State Park
Following that stop, we decided that it was just too hot and humid to do anything outdoors and we soldiered on. We made a brief stop at Chickasaw State Park, one of Tennessee’s beautiful resort-style state parks (Fall Creek Falls State Park is another). 

Chickasaw State Park; photo: Scott Stevens
These summer camps for families have campgrounds, hiking trails, tennis courts, rental bicycles, sometimes golf courses, water sports options, cabins and lots of other amenities. They are just gorgeous. And, as we were leaving, we saw a Broad-Winged Hawk deep in some dark trees.

Broad-Winged Hawk
Oklahoma City
We spent that night in Lonoke, Arkansas, and the drove on to visit daughter Rebecca in Oklahoma City. Once again, it was a bit too hot to do much. We started with OKC’s famous onion burgers at Tucker’s. Delicious.

Becca and me; Photo: Scott Stevens
Then, we went to the National Cowboy & Western Heritage Museum, which houses more than 28,000 Western and American Indian artworks and artifacts; the world's most extensive collection of American rodeo photographs, barbed wire, saddlery, firearms and early rodeo trophies; and displays on Western movies and TV shows. The museum also houses Prosperity Junction, a 14,000-square-foot indoor turn-of-the-century Western prairie town display. 

Established in 1955 as the Cowboy Hall of Fame and Museum, it focuses on preserving and interpreting the heritage of the American West.

It was a nice (air-conditioned) afternoon with some very interesting – and nostalgic – displays.

We finished up the day with dinner at a fabulous – although rather threadbare – Thai restaurant in downtown OKC with Becca and friend Alexis (she was one of my Africa traveling companions) and Alexis’ husband, Nigel. It was a fun evening with great food and a quick drive around OKC’s historic district to gawk at the beautiful restored historic homes.

We left the next morning and were home before dark!

Home!

Trip date: July 3-12, 2018