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Now someone will explain me the YDS,I haven't understood anything!! YDS = Yosemite Decimal System, it is the only rating system used in the United States. I have a nice website that shows the conversions http://home.tiscalinet.de/ockier/ratings.htm but it is in English :( For a reason unknown to me...

Saluti, Desidero per chiedere scusa per non scrivere Italiano. Once again I am sorry for writing this in English but I don't speak much Italian right now. I am taking some lessons and hopefully I will be able to in the near future. My name is Dylan and I come from Chicago,Illinois which is inside th...