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Mount Mitchell Summit EarthCache

Hidden : 4/27/2009
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size:   other (other)

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Geocache Description:

Welcome to the Summit of Mount Mitchell, The highest Earthcache east of the Mississippi

AKA, Eat your heart out Konnarock Kid


How Black Mountain and Mount Mitchell was formed

The earth is not finished, but is now being, and will be forevermore re-made. C.R. VanHise, USCGS geologist in the late 1800/early 1900s.

More than a billion years ago, the Black Mountains were formed. This mighty range of peaks once stood lofty and rugged. Mount Mitchell and other peaks in the Black Mountains may have been as high as the Himalayan Mountains 250 million years ago, but over millions of years, wind, water and other forces wore down the pinnacles to their rounded, more subdued profile of today. Only the erosion-resistant igneous and metamorphic rocks allowed Mount Mitchell to retain its dramatic height of 6,684 feet.

Timeline for the formation of the Black Mountains

600 to 800 million years ago:Sand, clay and rock fragments along with volcanic material were deposited in the ancient sea. The ancient rocks of Mount Mitchell were formed here.

250-475 million years ago: Continents move together; rock units are pushed westward over other rocks. Mountain chains including Black Mountain, are built up. Rocks are metamorphosed.

200 million years ago: Continents begin to pull apart. Mountain building ends in eastern North America. The Atlantic Ocean forms.

Today:Weathering and erosion continue to wear down the once massive peaks

The rocks of Mount Mitchell

Mount Mitchell is composed of the following material:

Sedimentary rock is rock that is composed of tiny particles of sand, clay and other sediments. The sediments are deposited in layers on land or on the bottom of lakes, rivers, and oceans. Over time these layers are compacted together to form rock. Sedimentary rocks were the original, parent rocks of Mount Mitchell.

Metamorphic rock is pre-existing rock that has been changed by extreme heat and pressure. Geologists call the rocks of Mount Mitchell “metasedimentary” because they are sedimentary rocks that have been metamorphosed. Most of the mount Mitchell rocks were exposed to high temperatures and pressures during mountain building.

Igneous rock is rock formed when magma solidifies inside the earth’s crust (intrusive) or when lava from a volcano cools at the earth’s surface (extrusive). Pegmatite is an example of an intrusive igneous rock found on Mount Mitchell.

A bit of Mount Mitchell History

In 1835, Dr. Elisha Mitchell, a science professor at the University of North Carolina, made an excursion to the area to measure the mountain elevations. At the time, Grandfather Mountain was assumed to be the highest point in the region, but previous trips to the area had persuaded Mitchell that the Black Mountains were higher.

Through the use of barometric pressure readings and mathematical formulas, Mitchell figured the highest elevation of the range to be 6,476 feet, higher than that of Grandfather Mountain. Subsequent visits to the Black Mountains in 1838 and 1844 led Dr. Mitchell to calculate the height of the peak at 6,672 feet — amazingly, only a mere 12 feet in error of modern calculations

In 1857, Dr. Mitchell returned to the Black Mountains to verify his measurements. While hiking across the mountain, he fell from a cliff above a 40-foot waterfall. Knocked unconscious by the fall, Dr. Mitchell drowned in the water below. In honor of his work, the highest peak in the Black Mountain range was given his name in 1858. Though originally buried in Asheville, Mitchell's body was reburied atop Mount Mitchell a year later

You may park in the Exhibit Hall parking lot, and hike the paved trail for 280 yards to the summit. The trail is a moderate slope, suitable for children and the handicapped.

The hall is open 10:00 to 6:00, and contains lots of very interesting information on the mountain’s natural, cultural, and historical faces. Particularly interesting is the weather station.

Park hours are November-February 8-6, March and October 8-7, April and September 8-8, and May-August 8-9. The park is closed on Christmas Day.

During the winter months, call the park office (828-675-4611) to see which roads are open. Mt. Mitchell averages 100+ inches of snow each winter.

Bring a jacket since it's often 10-30 degrees cooler than Asheville. The weather on Mount Mitchell is very mild in the summer and very harsh in the winter, more like Maine or southeastern Canada than the southeastern U.S.

The coldest temperature ever recorded in the state occurred there on January 21, 1985 when it fell to -34 °F. Unlike the lower elevations around Asheville, heavy snows often fall from December to March, with 50 inches accumulating in the Blizzard of 1993

Snow flurries have been reported on the summit even in the summer months of June, July, and August. The summit is often windy, with the record being 178 MPH

For more information, refer to this web-site, http://www.romanticasheville.com/mtmitchell.htm

Papafuz & Mama have earned GSA's highest level:
FTF HONORS GO TO moose_is_loose !!

To log your find

  • At the junction of the Blue Ridge Parkway and NC 128, take an elevation reading with your GPSr. At the benchmark on the summit, take another reading. What is the change in elevation?
  • From information in the display in the Exhibit Hall, list 2 types of rock of which Mount Mitchell is composed.

  • Post a picture of yourself with your GPSr any place in the area of the summit. (Optional)

  • For how long was Dr. Mitchell a professor at the University of North Carolina?

Additional Hints (Decrypt)

Lbh pna'g zvff vg.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)