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Steep and famous slopes -- exact angles wanted - Page 3

post #61 of 68
I will be there for a while around New Years and early jan hopefully. Would stay longer but the lift tickets are too expensive for me these days.

I have to admit that I was lucky as this was '96-'97 when there was a ton of snow. The exit was only like 8-10 feet and just left you with a lot of speed.
post #62 of 68
---------------------------- %GRADE
Degrees---------------- Tangent
90 ------------------->infinity
89 ---------------->5729%
80 ----------------->567%
70 ----------------->275%
60 ----------------->173%
55 ----------------->143%
50 ----------------->119%
45 ----------------->100%
40 ------------------>84%
35 ------------------>70%
30 ------------------>58%
25 ------------------>47%
20 ------------------>36%
15 ------------------>27%
10 ------------------>18%
9 ------------------>16%
8 ------------------>14%
7 ------------------>12%
6 ------------------>11%
5 ------------------->9%
4 ------------------->7%
3 ------------------->5%
2 ------------------->3%
1 ------------------->2%
0 ------------------->0%
post #63 of 68
Originally posted by arcadie:
Thanks Saddleback. I've always wondered if anybody skied that little bowl to the left of the cliff as I drove up toward the notch.
Lots of people ski another set of lines in the bowl, farther to the left (looking up from the road) called collectivly "slabs." They were featured in an article last winter in a telemarking magazine that did an article on Cannon Backcountry. Those lines max out at around 45° maybe a little more. Snows of Caradhras and its sister line (cut by some of my friends) "A Fell Voice on the Air," are skied by very few people. For one thing, they're a bitch to get to (I'd describe it here but that might be irresponsible, so PM me if you want detailed directions), and for another, they're incredibly steep, incredibly dangerous and very remote. A Fall could very likely be fatal, due to exposure and remoteness. But in general they are accessed from the Kinsman Ridge Hiking trail near the top of the cliff.
post #64 of 68
Originally posted by peak203f:
---------------------------- %GRADE
Degrees---------------- Tangent
Thanks for the info!
post #65 of 68
Originally posted by freshtracks:
Come on guys get the 'Math' sorted.

90 degrees = infinite % gradient.
..You go zero along the horizontal even if the drop is only 1ft.... 1 divided 0 = infinite %grade.

200% is somewhere bewteen 63 and 64 degrees.

274% is 70 degrees

567% is 80 degrees... you're not going to get a piste basher up that!
Right you are, but don't kid yourself about the 80 degree slope. You are not going to get ANYONE up that slope unless they have wings.
post #66 of 68

Here's a random question that I've never been able to discern out on the mountain after many years of skiing. How would the depth of the base and skier traffic affect the steepness of a slope? I've been trying to think of it logically in that skiers would tend to push snow downhill so snow would collect in the lower part of a certain pitch and kind of level out the angle, but then does that mean the top part would be steeper and more true to the slope of the ground underneath? Obviously, the very top is often steeper when there's a wind cornice. The follow-up conclusion would be whether or not slopes get steeper or flatter as the season progresses and the base builds. I'm guessing maybe flatter? Also, I would think grooming would affect all this for slopes that are periodically groomed.


I think I've seen pictures of slopes in the summer and they look somewhat steeper than what I recall in the winter, but maybe that's an optical illusion being that in the winter it's all white. Then again, maybe there's no difference at all and this is a silly question. smile.gif


Anyone have any insights?







post #67 of 68

I use the Google Earth line tool and a Rise over Run calculator. 


I find most lines are greatly exagerated, by slope angle as well as vertical change. 



http://www.1728.org/gradient.htm - this is the rise over run calc I use. 



Simply draw a line from your drop in, to the run out and plug the vertical change and distance in to this formula and you'll be able quantify any line you want. 

post #68 of 68

You can use this website to look at slope angles for a large portion of the western US:



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