Veteran and Woman Owned Small Business out of Littleton, Colorado Coin Size: 1.75"  Material: Metal Coin Color: Bronze (represents Class II) Ring Color: Teal (represents Sawatch Range) Our Summit Challenge Coins are the perfect way for you to commemorate your Colorado 14,000' summits.  Each coin is custom designed with a representation of that particular peak along with its height.  These coins are the perfect gift for your favorite Colorado Climber! Name Origination: After Robert Toll ascended the mountain in 1916, installing the bronze summit register, he named the mountain in honor of his Ivy League University, in which he graduated from in 1906 with a degree in civil engineering. How many of you have seen a pika on Mount Columbia?