Waterfall Classification
Types of waterfalls are based on how the
water falls or passes through it's course, how much water is
flowing, the surface beneath it and the geological processes that
created it (geomorphology). These all together form a waterfall's
unique shape, it's fingerprint so to speak.
Block / Sheet: Water from a wide
river or stream drops over a ledge forming what appears to be a
"sheet" of water. Ideally, it is not broken into segments at high
water and it is observably wider than tall.
Cascade: Cascade is a commonly used
term when referring to waterfalls and rightly so. The term
"cascade" comes from the Italian word "cascada" which actually
means "waterfall". A cascade type waterfall is defined by the
surface beneath it. It is one of the most common as the surface
beneath it is irregular and encompasses the falls not classified
elsewhere. It is generally water that flows down in small steps or
stages. Multi-Cascading is more than one cascade in a
row.
Cataract: Another word for waterfall
but usually one that is large, very powerful and rushes down with
force usually occurring on a river.
Chute: A violent section of water that
is forced through a narrow passage due to cliff walls or large
rocks. Depending on the descent angle, they may be classified as
rapids not a waterfall. Very common in canyons where the water is
wall-to-wall.
Classical: Similar to Block, water
drops over a ledge but is close to equal in width and
height.
Combination: Many waterfalls are a
combination of more than one type of falls. At Paulina Creek Falls,
you will find curtain, slide, segmented, and scree /
talus.
Curtain: Similar to Block and
Classical, water drops over a ledge but is taller than wide but not
a Ribbon.
Dry / Historic: This type of falls no
longer exists with water flowing over it. It is referenced here as
some of these historical falls were very magnificent in their time.
Dry Falls in Washington is one of these type and in it's day it was
over 3 miles wide and had a huge flow of water, the unique thing
about this falls was that it only flowed when the glacier lifted up
to release the water.
Fan: Water falls through a relatively
narrow crest and spreads out and becomes wider as it
descends.
Frozen: These falls can be of any
other type and it must have ice as a part of the falls. They are
spectacular as the ice formations are just as unique as the falls
themselves. If the temperature is just right, punchbowl falls will
often form a cone in the bowl of water.
Horsetail: Water descends down
remaining in contact with the surface most of the
time.
Keyhole / Slot: Water pushes through a
narrow area before falling. A keyhole is a special slot as it has a
rounded part at the bottom of the slot resembling the old fashioned
keyholes. Some times the water has forced (eroded) out a part of
the rock causing an actual hole water falls from.
Ledge: A geological formation that
influences shape of waterfall. It is a cliff that is relatively
flat with some width at the top and is vertical or almost vertical.
Angel Falls and Niagara Falls are great examples of a ledge. The
following shapes / types often result from a ledge.
Overhanging Ledge: Another geological
formation that influences shape of waterfall. It is a cliff that
the water has eroded under it causing an obvious overhang resulting
in the water free falling to the surface below.
Parallel / Twin: Parallel falls happen
when falls are side-by-side and fall similar to each other. There
can be two or more falls and can be from the same watercourse (also
see Segmented falls) or from more than one watercourse. Twin falls
are also side-by-side but do not have to be similar in type. Triple
and more falls exist as well.
Plunge / Vertical: Water descends
vertically without contact with the surface.
Punchbowl: Water falls through a
constricted area and descends down into a pool of water. The water
"punches" through and falls into a "bowl".
Ribbon: Water descends in a narrow
strip significantly taller than it is wide.
Segmented: Pieces of land segment the
river (same watercourse) causing the water to fall in sections. Not
to be mistaken with different watercourses forming different
waterfalls side-by-side as in Parallel / Twin falls.
Scree / Talus: Water flowing over a
chaotic mix of rock debris on a slope usually found at the base of
a cliff or steep incline. Scree is usually the rocks that are
smaller than a softball and talus is larger than a
softball.
Slide: Water glides over a single slab
of rock maintaining smooth continuous contact.
Tiered / Staircase / Multi-Stepped: Separate waterfalls falling consecutively and in close
proximity so generally they can be seen together. Any type of falls
can be tiered.
Veil: Water falls over rocks (usually
large rocks) creating a thin layer of water that just barely covers
it's surface.
Baby Falls - I stopped and watched some kids playing in the water...
above the falls. I wasn't sure what the name of the falls were, but
watching the young folks slide off the falls, I had come to the
conclusion that the falls must be named Brain Dead Falls. After
watching the kids for a few, it almost looked like fun. I'm not
sure that I would attempt such a thing at my age, or if I would
have even attempted this 25 years ago either. Then if that wasn't
adventurous enough for these young folks, some of the boys climbed
up the large rock on the other side and proceeded to do flips off
the rocks. It was fun to watch, but I'm wondering what they were
thinking... or if they were thinking. I do not recommend this
activity!!! [Reviewer's
Note: Please act with prudence and caution while visiting this
area!]
Earthcache
Target:
1.) Picture
requirement:
My intentions are to have you post your picture standing at the
falls. If you refuse to post your face in the picture, then each
log must have a unique picture for each log. Tilting the picture
with a photo program will not be acceptable for unique. Group
photos must reference who's picture you are in otherwise. A unique
picture must be included with every log if you are not in the
picture. .
Email me the following
answers...
2. What classification does this
waterfall fall under?
3. Explain why you chose that
classification.
4. What is the elevation on your
GPS?
5. How tall is the waterfall?
6. How wide is the
waterfall?
NOTE:Not sending the answers and
posting the required photo at the time of you log will get your log
deleted without any notice.