Onondaga Formation: Ruthven EarthCache
Hidden : 3/6/2010
Difficulty:
2 out of 5
Terrain:
2.5 out of 5

Size: Size: not chosen (not chosen)

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Geocache Description:

Onondaga Formation: Ruthven Earthcache

The Onondaga Formation is a group of hard limestones and dolostones (sedimentary rocks) of Devonian age (416 to 359.2 million years ago) that form geographic features from Albany, New York (USA) through Fort Erie, Ontario (Canada) to Windsor, Ontario (Canada). The Onondaga Formation can be seen in the form of escarpments or ridges which travel along the north shore of Lake Erie. These features were formed from glacial erosion interacting with the hard limestones and dolostones which resist erosion to varying degrees.The resulting escarpments or ridges are visible in varying sizes from low ridges to steep hills.

The town of Ruthven is home to the most pronounced point of the Onondaga Formation in Southern Ontario. Today, this point is a very steep hill which is mostly covered by soil and vegetation. However, there are excellent examples of these hard sedimentary rocks at the base of the formation.

You will begin your journey at the top of the hill (see additional waypoints for coordinates) and make your way down a series of steps to the base of the formation. The posted coordinates will take you to a series of large rocks which provide you a beautiful view of this landscape.

In order to log this Earthcache, you must provide the following:
1. Photo of your GPSr with the Onondaga Formation (steep hill) in the background. You must attach this photo to your log.

2. Email team wiji the answer to the following question: What is the estimated height of the hill from bottom to the top? (This can be done by counting the number of steps on your descent.)


++ Congratulations to Grey Falcons on the FTF!! ++

This cache placed and maintained by an Ontario Geocaching Association Member

Additional Hints (No hints available.)



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