Columbia Boulder is a

boulder In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In ...

located in Camp 4 at

Yosemite National Park Yosemite National Park ( ) is an American national park in California, surrounded on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers an ...

. It is the largest boulder in Camp 4 and easily seen from the

campground A campsite, also known as a campground or camping pitch, is a place used for overnight stay in an outdoor area. In British English, a ''campsite'' is an area, usually divided into a number of pitches, where people can camp overnight using ten ...

. According to Mike Borghoff, there are no easy

bouldering Bouldering is a form of free climbing that is performed on small rock formations or artificial rock walls without the use of ropes or harnesses. While bouldering can be done without any equipment, most climbers use climbing shoes to help sec ...

problems on Columbia Boulder. There are several bouldering problems on Columbia including the iconic '' Midnight Lightning''. Other famous routes on the boulder include: ''Robbins Eliminate'', named after

Royal Robbins Royal Robbins (February 3, 1935 – March 14, 2017) was one of the pioneers of American rock climbing. After learning to climb at Tahquitz Rock, he went on to make first ascents of many big wall routes in Yosemite. As an early proponent of b ...

; ''Bates Problem'', named after Barry Bates; and ''Ament Arête'', named after

Pat Ament Pat Ament (born September 3, 1946) is an American rock climber, filmmaker, musician, and artist who lives in Fruita, Colorado. Noted for first ascents in the 1960s and 1970s, he is the author of many articles and books. Climbing career Ament b ...

. In attempts to improve relations between climbers and park rangers, discussions over free

coffee Coffee is a drink prepared from roasted coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulating effect on humans, primarily due to its caffeine content. It is the most popular hot drink in the world. Seeds of ...

usually take place once a week from spring to autumn beside Columbia Boulder.

References

Climbing areas of California Yosemite National Park {{Climbing-stub