I'm planning a holiday in Zion national park and am looking at routes classed as grade 4 scrambles. How do these compare to say a grade 3 scramble in the UK with Moderate rock climbing moves? Advice from anyone experienced with both systems would be great.|||i assume you mean class, and not grade. grade in the YDS refers to the length of a climb, grade IV would be a full day climb. i don't know about your british system, but grade IV here in the states usually refers to scrambling. while exposure may be present which would result in death, i typically don't rope up unless i am going to be roped up anyway. typically I simul climb if i do end up roped up. some people may recommend roping up for a class IV climb. here is an excellent wikipedia article. http://en.wikipedia.org/wiki/Grade_(clim鈥?/a> what are you planning to climb in zion? i used to live in utah and never climbed there...such a shame.|||Connor: No He`s referring to grade since he is looking to go scrambling, grade 4 or easy grade 5 Here is a conversion chart that`ll help you out, its probably all you need: http://www.rockclimbing.com/Articles/Int鈥?/a>

火车采集器