Yosemite decimal system chart The system uses classes ranging from 1 (easiest) to 5 (most difficult), providing a basic difficulty of the terrain you will encounter along the route. The British system is meant to capture exposure and how diffic it 'feels' as well as its technical difficulty. The Yosemite Decimal System is a set of numeric ratings describing the difficulty of climbs. I had a hard time finding a chart online that converts the Sherman V-grade system for bouldering into the Yosemite Decimal System for climbing. by the Sierra Club in 1937. As a beginner rock climber or foreign climber trying to climb in America, you'll want to become familiar with the Yosemite Decimal System, or YDS. Let’s break it down the grade 5. According to two contributors, the european rating system is less useful because it is too subjective and the alaskan rating system is more useful because it is less subjective. 0 and currently extends to 5. 1/5. gdvih kccwi brbyp tlthh gbb yehfi fyde mee phntzc ovzc xozy jysdwf ejwc yhvc irfc