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Mount Borah Scarp EarthCache

This cache has been archived.

Geocaching HQ Admin: It has now been over 30 days since Geocaching HQ submitted the disabled log below and, unfortunately, the cache owner has not posted an Owner maintenance log and re-enabled this geocache. As a result, we are now archiving this cache page.

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Hidden : 10/16/2007
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size:   not chosen (not chosen)

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Geocache Description:

Mount Borah Scarp is the result of an earthquake that hit this area in 1983.

Idaho is part of the world's longest mountain chain above sea level. This chain extends from the top of South America to Alaska's north coast. The widest section is in the western United States-from the Sierra Nevada to the Rocky Mountains. The Lost River Range is one of many smaller mountain ranges between the Rocky Mountains and the Sierra Nevadas.

The earth's crust between the Sierra Nevad and Rocky Mountains, including the Great Basin, is stretching about 1/2 inch per year. And, it's getting thinner. Every so often- a few hundred to a few thousand years- the crust breaks along old fracture lines known as "faults". The valleys drop and the mountains rise, creating the "Basin and Range" landscape that you see at this site.

This site also shows a great example of what can happen during an earthquake. Signs at this site will walk visitors through the process that happened here in 1983. It will show how part of the surrounding land dropped and other parts rose during this earth quake.

To be able to log this Earth Cache you will need to send answers to the questions below prior to logging your visit. We will send you an email back approving your answers at which point you can go ahead and log the find. The questions to be answered are:

1. On which date occurred the earthquake that caused this unique feature at this site to appear?
2. How big was this earthquake on the Richter Scale?
3. How far did the Thousand Springs Valley drop as a result of this earthquake?
4. How far did the Lost River Range rise as a result of this earthquake?
5. How long is the scarp that you can see at this site?
6. How much damage did the this "ground roll" do to roads and buildings in this area?

More educational information will be found at the site and will be needed to answer the questions for this educational experience.

Additional Hints (Decrypt)

Ab uvagf ner arprffnel.

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)