Wedge Rock - This huge rock fell into the ravine from the top of the ravine. The trees give help with the size of the rock and the time that the rock has been resting at its current location. |
Punch Bowl - This place shows the work of the erosion of the rock |
In Western Indiana the Sugar Creek area near Crawfordsville
was once under a sea. Layers of sand at
the bottom of the sea were compressed to become sandstone. This is now named the Mansfield sandstone. The
coal that is found in the area was laid down during the time that the sea was
gone but marshes covered the area. After
that time the area was covered with ice.
Rock brought with the ice is called glacial drift. This material lodged in waterways and changed
the flow of surface water.
New surface water streams developed in the
area. The stream that that is now known
as Sugar Creek changed the look of the area. Sugar Creek and its tributaries eroded
into the Mansfield sandstone. In places
the deep ravine is wider than the upper reaches of the ravine. The eroded canyons have dramatic shapes. The cool shady areas provide habitat for rare
plants.When one walks in a Northerly direction the path comes an area of bare rock that looks something like a sloped stack of oatmeal cookies. A cascade of water noisily falls down this stack of rocks. The wet rock surfaces are slippery. After climbing that sloped area the sides of the ravine narrow until one finds almost no places to step without stepping into the high velocity water rushing toward the walker.
A dramatic passageway that goes on for dozens of feet must be negotiated with the churning water constantly flowing through the sandstone. It is possible to make it through without stepping into the rushing water but it takes some doing.
It is a place of becoming very close to the rock cliff faces.
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