Geocaching.com


Geocaching

Welcome, Visitor!

Sign In | Create Account

Sign in with Facebook


or

Sign in with Geocaching

Forgot Username/Password

EarthCache

Black's Ravine EarthCache

Hidden : 2/7/2008
In Wisconsin, United States
Difficulty:
2 out of 5
Terrain:
2 out of 5

Size: Size: not chosen (not chosen)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:


Black's Ravine, or more commonly called The Devil's Punchbowl, is located just to the south of Menomonie Wisconsin.


Photobucket

Where you are standing now, was part of a shallow seabed 550 million years ago. Black's Ravine (also known as The Devil's Punchbowl) is formed out of the Eau Claire Sandstone Formation that was part of these ancient sea deposits. Evidence that this was once an aquatic environment can be found in the form of fossils in the surrounding strata.

What you see today, The Devil's Punchbowl, is a product of the immense erosional forces caused by the melting of glaciers approximately 10 thousand years ago.

To receive credit for this EarthCache, you'll need to take a couple of measurements (and do a little math). Hopefully by doing so, you'll better understand what incredible forces were at work that led to the formation of Black's Ravine.

1. At the parking coordinates given, take an elevation reading from your GPS.

2. Now proceed to the final coordinates listed. Take an elevation reading there.

Assuming that the erosional forces that created The Devil's Punchbowl began 10 thousand years ago (and are still at work today).

3. How much rock is being lost per year?

E-mail this information to me when you log this EarthCache.

Also, when logging this EarthCache, please upload a picture of yourself/team, with your GPS clearly visible.

Logs that don't meet these criteria Will Be Deleted. No Exceptions.


Please note.
Visitors to this area are asked to respect the Punchbowl's fragile soils and plants, its streambed and sandstone slopes, its natural sounds and silences. So please stay on the established trails, the information required can be obtained from these.

Also, even though this EarthCache is suited for the entire family, and can be accessed year round. Because of spring water that is constantly seeping into this area, this area may be icy in the wintertime. Please use caution when visiting this special area during the colder months.



Photobucket

Additional Hints (No hints available.)

Advertising with Us

Inventory

There are no Trackables in this cache.

 

Find...

85 Logged Visits

Found it 77     Write note 7     Publish Listing 1     

View Logbook | View the Image Gallery of 108 images

**Warning! Spoilers may be included in the descriptions or links.

Current Time:
Last Updated: on 8/17/2014 6:46:47 AM Pacific Daylight Time (1:46 PM GMT)
Rendered From:Unknown
Coordinates are in the WGS84 datum