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Topic: Yosemite Decimal System

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	An introduction to the Yosemite Decimal System
		The Yosemite Decimal System (or, YDS) is a numerical system for rating the difficulty of walks, hikes, and climbs, primarily used for mountaineering in the United States.
		The rock climbing (5.x) portion of the scale is the primary climb grading system used in the USA.
		The scale was initially developed as the Sierra Club grading system in the 1930s to rate hikes and climbs in the Sierra Nevada range.
	mccammon.ucsd.edu /~adcock/Yosemite_Decimal_System.html (456 words)

	Yosemite Decimal System - Wikipedia, the free encyclopedia
		The Yosemite Decimal System is a numerical system for rating the difficulty of walks, hikes, and climbs, primarily used for mountaineering in the United States.
		The scale was initially developed as the Sierra Club grading system in the 1930s to rate hikes and climbs in the Sierra Nevada range.
		The increasing technical difficulty of Class 5 climbs led to the same relative-grading problem that had caused the initial development of the system; as a result, Class 5 was subdivided in the 1950s.
	en.wikipedia.org /wiki/Yosemite_Decimal_System (460 words)

	Grade (climbing) - Wikipedia, the free encyclopedia
		There are a number of factors that contribute to the difficulty of a climb including the technical difficulty of the moves, the strength and stamina required, and the difficulty of protecting the climber.
		The Yosemite Decimal System originated in the USA and quickly spread to Canada and the rest of the Americas.
		The Yosemite system considers only the technical difficulty of the climb from the point of view physical requirements as well as the complexity of the move itself.
	en.wikipedia.org /wiki/Grade_(climbing) (1655 words)

	decimal
		Decimal, also called denary, is the base 10 numeral system, which uses symbols 0-9 (called digits).
		Decimal is the predominant numeral system used by humans, though some cultures do or did use other number systems.
		The system is called Arabic numerals by Europeans and Hindi numerals by Arabs, after the people they got it from.
	www.fact-library.com /decimal.html (444 words)

	Yosemite Decimal System - Education - Information - Educational Resources - Encyclopedia - Music
		Yosemite Decimal System - Education - Information - Educational Resources - Encyclopedia - Music
		The Yosemite Decimal System is a numerical system for rating the difficulty of walks, hikes, and climbs, primarily used for mountaineering in the United States.
		The rock climbing (5.x) portion of the scale is the primary climb grading system used in the US.
	www.music.us /education/Y/Yosemite-Decimal-System.htm (633 words)

	Yosemite Decimal System - the free encyclopedia (Site not responding. Last check: 2007-10-30)
		The Yosemite Decimal System is a numerical system for rating the difficulty of walks, hikes, and climbs, primarily usedfor mountaineering in the United States.
		The scale was initially developed as the Sierra Club grading systemin the 1930s to rate hikes and climbs in the Sierra Nevada range.
		The increasing technical difficulty of Class 5 climbs led to the same "relative grading" problem that had caused the initialdevelopment of the system, so that class was subdivided in the 1950s.
	www.encyclopedia-of-knowledge.com /?t=YDS (399 words)

	Peakware - Route Difficulty Ratings
		There is presently no standard universal rating system by which the difficulty of all climbs is measured.
		The most common American system is a combination of the National Climbing Classification System (NCCS) and the Yosemite Decimal System (YDS).
		The French system is an adjectival system that was designed to rate climbs such as those common in the European Alps, generally snow and ice climbs.
	www.peakware.com /encyclopedia/help/ratings.htm (658 words)

	Grade (climbing) (Site not responding. Last check: 2007-10-30)
		The original intention was that the classes would be further subdivided decimally, so that a route graded 4.5 would be a scramble halfway between 4 and 5, and 5.9 would be the hardest rock climbs.
		As of 2004, the hardest climbs are graded 5.15a.
		The Yosemite system considers only the physical difficulty of the climb, and not the quality of protection.
	www.sciencedaily.com /encyclopedia/grade__climbing_ (1016 words)

	The climbing dictionary - Ratings
		All rating systems (apart from the British system) use the difficulty of the crux (the most difficult move or series of moves) to determine the rating, at least in principle.
		The British rating system - had you expected anything else - is a bit more difficult and a little less comprehensible than the rating systems used in the rest of the world.
		The Saxon Rating System, or the East German (GDR) rating system as it was known before the Wall came down, is used in all of the former East Germany.
	home.tiscalinet.de /ockier/ratings.htm (733 words)

	Scrambling - Wikipedia, the free encyclopedia
		In practice this means the terrain will be approximately the steepness and difficulty of a ladder; the footholds will be large and the climber will be able to stand upright.
		In the US, scrambling is Class 3 in the Yosemite Decimal System of climb difficulties, and Easy in the British system.
		Many of the world's mountaintops may be reached by walking or scrambling up their least-steep side.
	www.wikipedia.org /wiki/Scrambling (256 words)

	Hong Kong Climbing
		As the name suggests, this system was developed in Fontainebleau, France, and consists of both technical, font, grades and colour coded problem cicuits.
		This system is only widely used in France, mostly around Fontainebleau itself, and suffers from vast irregularities of grades at the lower end of the spectrum.
		Due to their less demanding nature this system is probably the best one to give an indication of grade for 'easy' problems.
	www.hongkongclimbing.com /general/gradetables.html (720 words)

	Fall of the Phantom Lord
		The difference of a full decimal point, however, is substantial; until recently, a dedicated climber could expect to spend months or even years advancing from 5.10 to 5.11, from 5.11 to 5.12.
		When the Yosemite Decimal System was implemented, the world's best climbers could not imagine a route as difficult as 5.7.
		At the time, then, there was no imaginable conflict, mathematically, with a decimal system in which the next whole number--6--was unavailable, taken as it was to define a wholly different style of climbing.
	partners.nytimes.com /books/first/t/todhunter-phantom.html (6661 words)

	yosemite decimal system
		Operators under the system to listen to see how hard; techno agenda, there are was a full night is yosemite decimal system incredibly strange and Greg, hanging on how you paid.
		Each from INTERACTIONS between yosemite decimal system stars in the Moon bases fired in two postulates Larson a few cases of Things are outside the mass than required.
		IGNUcious of five my meds were to inflict myself off woman some yosemite decimal system restraint of course he says in releasing a think it would ask about how much: simpler and his favorite of superheroes and that's not been digging up through.
	yosemite-decimal-system.b2.getherbalifeonline.com (518 words)

	Definition: Climbing Grades and Class (Site not responding. Last check: 2007-10-30)
		The system in use in Yosemite is called the Yosemite Decimal System (YDS).
		This system categorizes terrain according to the techniques and equipment required in ascending that terrain, using two terms: Class (difficulty of each move) and Grade (overall length of time to climb).
		You could call the thing a 5.91, but that has two implied errors: (1) that a 5.91 is only slightly harder than a 5.9, and (2) it implies a level of precision that does not exist (a 5.8 is a rough estimate, but a 5.91 is very precise).
	www.davidlnelson.md /ElCapitan/DefinitionClimbGrade.htm (726 words)

	decimal - KBCafe search
		Decimal representation of fractional numbers 2.1 Decimal fractions 2.2 Decimal representation of other rational numbers 2.3 Decimal representation of the real numbers 3 History 3.1 Decimal writers 4 See also 5...
		The expression of a number using the decimal system is called its decimal expansion, examples of which include 1, 13, 2028, 12.1...
		The Yosemite Decimal System The Yosemite Decimal System is a set of numeric ratings describing the difficulty of climbs.
	www.kbcafe.com /search.aspx/decimal (533 words)

	The Yosemite Decimal System (Site not responding. Last check: 2007-10-30)
		The Yosemite decimal systems represents the method which most climbers use today to measure the terrain.
		This system can be broken down into five categories, with the fifth breaking down even further.
		In general a 5.0 represents the easiest where a 5.14d was thought to be impossible only until recently.
	www.earthclimbers.com /ecyds.htm (447 words)

	Decimal system - www.cadence90.com/wp/index.php?p=2763 (Site not responding. Last check: 2007-10-30)
		Decimal, or denary, notation is the most common way of writing the base 10 Decimal point · Dewey Decimal System · Floating point · Numeral system
		The Yosemite Decimal System (or, YDS) is a numerical system for rating
		DDC's cleverness is in choosing (A number in the decimal system) decimals for its categories; this allows it to be both purely numerical and infinitely
	www.usefullib.com /?q=decimal-system (171 words)

	An introduction to climbing grades
		The Ewbank system, used in Australia and New Zealand, was developed in the mid-1960s by John Ewbank.
		The UIAA grading system is an ill-fated attempt at international standardization.
		In North America, the "V" grades devised by John Sherman at Hueco Tanks are prevalent having largely displaced use of the older "B" grades introduced by John Gill.
	mccammon.ucsd.edu /~adcock/climbing_grades.html (980 words)

	Rock Climbing Forums: Climbing Information: General: Yosemite decimal grading scale
		The current rating system has its roots in Europe were a "Class" system was devised by Weltzenbach (sp?) in the 1920s.
		The orgins of the Decimal System have made it unduly complicated, but it works.
		The British system is also complex because it evovled from the very earliest days of climbing.
	www.rockclimbing.com /topic/53756 (1403 words)

	Difficulty Rating Systems (Site not responding. Last check: 2007-10-30)
		Although the YDS is the most popular rating system in North America, other systems exist (you may have that old guidebook that still lists them).
		The Saxon Rating System, or the East German (ex GDR) rating system as it was known before the Wall came down, is used in all of the former East Germany.
		This grading scale considers all aspects of the climb which have nothing to do with the technical difficulty: average runout distance, quality of the protection placements, objective dangers, quality of the rock, etc. The scale goes from E0 to E5.
	www.climbing.apollo.lv /dif_syse.htm (781 words)

	The American Safe Climbing Association
		ALL rating systems for climbing are HIGHLY subjective, depending on the skill and experience of the climber.
		After many very difficult climbs accumulated in the 5.9 rating, the decimal system was "broken" in that it was no longer a decimal system, and the 5.10 rating came in to existence, followed by 5.11, 5.12, 5.13, 5.14, and now 5.15.
		However, all the various rating systems do not describe the danger level faced by the leader should the leader fall (which is one reason why the YDS should not be used in climbing gyms).
	www.safeclimbing.com /about_overview.htm (1402 words)

	BoiseWeekly: Rec: Rec Features: Spider Boy
		The Yosemite Decimal System is used to measure the difficulty of a climb and involves a scale from 1-5.
		At five, described as near vertical, it is broken down further with decimals, and climbs that are even more difficult will include a letter grade of a-d.
		The Yosemite Decimal System (YDS) is the North American rating system for climbing.
	www.boiseweekly.com /gyrobase/Content?oid=oid:153259 (1381 words)

	Grading a climb - Wikipedia
		Aid climbs use the grades A1 to A5 depending on the steepness of the terrain, the reliability of the gear placements, exposure, and the general experience necessary.
		In the USA and other parts of America the Yosemite Decimal System is used.
		The British grading system has two parts: the Adjectival grade and the Technical grade.
	nostalgia.wikipedia.org /wiki/Grading_a_climb (498 words)

	Flatliners' Website - Climbing Tutorial - Rating climbs
		In order to distinguish the various levels of difficulty within Class 5, it was given decimal extensions from 5.1 to 5.9, with the higher range indicating more difficult climbing.
		The strict interpretation of a "decimal system" was loosened to extend the limits to 5.10, 5.11, 5.12 on so on.
		The current upper limit of the Yosemite Decimal scale is 5.14d, attainable by only a handful of unique athletes.
	members.aol.com /jackie4737/howto6.htm (784 words)

	climb
		The first is the Yosemite Decimal Sysyem (YSD) which is used in the U.S. for all tradional climbing, top ropping, and sport climbing.
		The YSD is the most common grading system seen in the United States for rating climbs.
		The Sherman System is an open ended V-Scale which means that as climbers contiue to push their abilities the V-Scale will grow to accomidate new routes.
	outingclub.wlu.edu /guidebook/climb/climb.htm (1142 words)

	Johns Hopkins Magazine
		Deborah Duffy, formerly a Hopkins doctoral student in psychological and brain sciences and now a postdoc at Indiana University, recently published the results of a study of starlings with her mentor, Hopkins professor Greg Ball, in The Proceedings of the Royal Society of London.
		The new finding is an important step toward proving a decade-old theory that suggests, in part, that only male birds with very healthy immune systems can afford to produce the endocrine factors such as testosterone that appear to help them sing more and grow brighter plumage.
		Expanding access, he suggests, should entail increasing the number of hospitals that perform emergency angioplasty, as well as creating triage systems for sending heart attack patients to the best hospital for their needs.
	www.jhu.edu /%7Ejhumag/0602web/wholly2.html (3140 words)

	Hiking in the Yosemite Region
		The Yosemite Decimal System - Difficulty of climbs
		Yosemite Valley's Camp 4 Background - Eligible for the National Register of Historic Places
		Wilderness permits are required for overnight stays in Yosemite’s backcountry and are issued by Yosemite's National Park Service.
	www.yosemite.com /tripplan/thingstodo/hiking.html (104 words)

	The Novice Rock Climbing Page:Begginers (Site not responding. Last check: 2007-10-30)
		In the past, the sport was practiced in small communities worldwide, many of which developed their own systems for evaluating the difficulty of a route.
		Eventually, these communities coalesced their systems under national umbrellas.
		So the average American climber -- this guy knows and loves the Yosemite Decimal System -- who runs across an A, AI, WI, M, or even a J, probably shakes his head uncomprehendingly and reads past the cryptic markings.
	members.tripod.com /%7Ecamclimber/begginers.html (357 words)

	14ers.com - Difficulty Rating System
		I am using a rating system that has been in use in the United States for over 75 years.
		Note: In the 1950s, the Class 5 portion of this ranking system was expanded to include a decimal at the end of the ranking to further define the difficulties of rock climbing.
		Recently, the rankings of 5.10 through 5.14 were expanded to include an "a", "b", "c" or "d" after the decimal (Example: 5.12a) to provide further details of the ranking.
	www.14ers.com /classes.html (1142 words)

	Michigan Climbing Club
		The Yosemite Decimal System is the most popular rating system in the world alongside the French System.
		Class 5 is where the technical moves begin and where the ratings break down into an imperfect decimal system.
		The Yosemite Decimal System equivalent below refers to the crux moves of a climb given that rating.
	www.umich.edu /~climbing/grades.html (2305 words)

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