Climbingaddicts Yosemite Gray Chalk 100G – CAC-1004Looking for the world’s best gray climbing chalk Yosemite Gray is family forged in the Colorado Rockies, and is developed to reduce climber impact. Climb Consciously. Our Yosemite Gray climbing chalk is perfect for a number of areas, and if you’re planning to climb dark rocks, then it’s the ideal choice. You won’t have to worry about leaving marks along your route, and you can greatly reduce your impact as you climb. Order your new bag of colored climbing chalk today!