Showing posts with label Jewel Cave National Monument. Show all posts
Showing posts with label Jewel Cave National Monument. Show all posts

Sunday, October 15, 2017

Natural Entrance - Jewel Cave National Monument


When Frank and Albert Michaud discovered the natural entrance to Jewel Cave in Hell Canyon in 1900, they filed a mining claim that described the opening as too small for human entry. After enlarging the opening with dynamite, the brothers and their friend Charles Bush entered the cave. Their plan to mine the "jewels" from the cave fell apart when they learned the minerals were nearly worthless calcite. They then planned to open the cave to tourists and built a trail in the cave. The lack of tourists stymied this plan and the Michaud family sold their mining claim to the government for about $750.

A national monument protecting the cave was established on February 7, 1908. A private group began tours again in 1928. The park service began administering the monument in 1933 with park rangers from Wind Cave National Park working at the monument during the summer. In 1935, a Civilian Conservation Corps camp was established at Jewel Cave. Among other projects, the 25 men of the CCC built a three-room cabin, an 800-foot long trail to the entrance that included a stone stairway. Ranger Elwood Wolf and his wife, Shirley, lived in the cabin full-time from 1941 until 1943. Other rangers lived and worked in the cabin until the new visitor center complex was opened in 1972.

The natural entrance road is located about one mile west on US-16 from the road to the Jewel Cave National Monument visitor center. This short road ends in a loop that includes parking and a picnic area. A short gravel path leads up to the restored 1935 Ranger Cabin. The cabin is open to the public during the summer months as part of the Historic Lantern Tour.

I happened to be at the cabin when a ranger arrived to eat lunch before conducting a tour and was invited inside. After taking some pictures and talking with the ranger about the Jasper Fire and our evolving understanding of a healthy forest, I proceeded down the route of the old CCC trail to the gated cave entrance. The surface of the trail has been upgraded to a concrete sidewalk, but the original stone stairway is still in use.

The Jasper Fire started on August 24, 2000 and caused the monument to be closed for about ten days. During that time, the fire burned 90% of the monument surface and over 83,000 acres across the Black Hills. The forest today is much more open than it was in 2000 and is more likely closer to its natural density, as measured in trees per acre, today than it was before the fire. I visited in August 2017, seventeen years after the fire.

Gravel path from the paved parking area to the cabin

Restored 1935 Ranger Cabin
 
The other end of the cabin

Evidence of the 2000 Jasper Fire

Meeting area for Historic Lantern cave tours

More evidence of the Jasper Fire
 
Office end of the cabin

Kitchen door at rear of cabin
 
Fireplace in the office

This wood stove is not original to the cabin, but would be similar to what was used

Bedroom

Sink in the bedroom (lantern shelving is not period)

Trail

A series of steps leads down the hill

Hell Canyon with US-16 on the far side

Another view of Hell Canyon
 
Western Chipmunk (Neotamias umbrinus)

CCC stairway

Stonework retaining wall
 
Benches for a ranger talk 

Burned bark

The only poor surface on the trail
 
End of the trail...

...and entrance to the cave

Gate across the entrance allows bats free access

Return the same route

Ranger Cabin from the trail

Entry to Jewel Cave National Monument is free. Cave tours require a fee of $4 to $31 per adult depending on the tour. Prices are reduced for children and seniors. Some tours have a minimum age requirement. Tickets for the current day tours are sold at a kiosk outside the visitor center on a first-come, first-served basis.

The monument website is https://www.nps.gov/jeca.

Saturday, October 14, 2017

Scenic Tour - Jewel Cave National Monument


The Scenic Tour is the most popular tour of Jewel Cave. The guided tour lasts 80 minutes with entry and exit via the elevators in the visitor center. The tour route passes through various cave chambers and passages along a concrete trail with steel stairs and handrails. The route includes a total of 723 stairs  along a ½ mile loop that returns to the elevator at a lower level than the start. The path and many formations are illuminated by electric lights. The tour is rated moderately strenuous due to the number of stairs.

The cave temperature is 49 degrees, so a sweater or light jacket is recommended. In addition, close-toed low-heeled, rubber-soled shoes or hiking boots are highly recommended. Clothing, shoes, and even cameras that have been in other caves outside the Black Hills are not allowed in order to help prevent the spread of White-Nose Syndrome that is killing bats across the country.

Additional information from the park service website:
During the Scenic Tour, you will see two types of calcite crystals known as nailhead spar and dogtooth spar, which are the "jewels" of Jewel Cave. In addition, you can view boxwork, cave popcorn, flowstone, stalactites, stalagmites, draperies, and a long ribbon drapery called the cave bacon. 
Each Scenic Tour allows for a maximum of 30 participants. It is common for all Scenic Tours to sell out before noon daily during the summer months and holiday weekends. Tour times vary by season. In collaboration with Black Hills Central Reservations, Jewel Cave National Monument offers advanced ticket sales for Scenic Tours scheduled on the hour. Advanced ticket sales can be made for dates that are over 48 hours in advance and up to 90 days into the future. Advance ticket purchases can be made online at www.blackhillsvacations.com or by phone at 844-245-6179. Please be advised that advanced ticket sales are administered by Black Hills Vacations.
NOTE: Same Day Tours are available at Jewel Cave National Monument; tickets for same day tours are available on-site, in person, on a first come first served basis on the day of the tour. Cave tours can and often do sell out daily. Visitors are advised to come in the morning to purchase tickets for any time during the same day.
Tickets for the scenic tour are $12 per adult and $8 for youth age 6 to 16. The tour is not recommended for children age 5 and under. Each tour participant must be able to navigate all 723 stairs without assistance. A maximum of 30 participants are allowed on each Scenic Tour. The number of tours and the start times vary by season. I took the tour in August 2017.

Elevator air lock in the cave

Overhead

One of several viewing platforms

One of the views from the platform

Typical stairs, but not on this tour

Another view from the platform

Tour route down from the platform

Looking back at the elevator airlock room

Dogtooth Spar

A closer look at some Dogtooth Spar

Cave formations tinted black by manganese dioxide

Cave Popcorn

Looking back at a set of stairs

Passageways form along faults in the limestone

View inside a geode

More calcite crystals or cave "jewels"

Trace minerals color the formations

Boxwork

More boxwork

A broken formation reveals its structure

A cave chamber

Flowstone

Active flowstone

Flowstone tinted by iron oxide

Jellyfish formations

Stalactites

Flowstone

More stalactites

Jellyfish and flowstone

Stalctites

Cave Egg

Repaired stalctite

Flowstone over Nailhead Spar

More mineral patterns above a chamber

Overhead view

Stalagmite

Nailhead Spar

Formations inside formations

Manganese dioxide coats this Dogtooth Spar 

Cave Bacon

Further up the Cave Bacon

More mineral patterns

Different types of lighting 

Another viewing platform

The lower elevator airlock

Entry to Jewel Cave National Monument is free. Cave tours require a fee of $4 to $31 per adult depending on the tour. Prices are reduced for children and seniors. Some tours have a minimum age requirement. Tickets for the current day tours are sold at a kiosk outside the visitor center on a first-come, first-served basis.

The monument website is https://www.nps.gov/jeca.