{{Short description|Granite boulder, Yosemite}} {{Use mdy dates|date=May 2013}} {{Infobox mountain | name = Columbia Boulder | image = Midnight Lightning yosemite.jpg | image_caption = Michael Rael Armas on ''Midnight Lightning'' with its iconic lightning bolt | elevation_m = | prominence_m = | location = Camp 4, Yosemite National Park, California, U.S. | coordinates = {{coord|37|44|30|N|119|36|9|W|display=inline}} | type = Granite boulder }}
'''Columbia Boulder''' is a {{Convert|30|ft|m|adj=mid|-tall}} boulder located in Camp 4 at Yosemite National Park. It is the largest boulder in Camp 4 and easily seen from the campground. According to Mike Borghoff, there are no easy bouldering problems on Columbia Boulder.<ref>{{Cite book |title=Camp Four |author=Steve Roper |author-link=Steve Roper |publisher=The Mountaineers Books |year=1994 |page=151 |isbn=9781594852824}}</ref> There are several bouldering problems on Columbia including the iconic ''Midnight Lightning''.<ref name=stonecrusade>{{Cite book |title=Stone Crusade: a historical guide to bouldering in America |author=John Sherman |pages=102–106 |year=1994 |publisher=The Mountaineers Books |isbn=9780930410629 }}</ref> Other famous routes on the boulder include: ''Robbins Eliminate'', named after Royal Robbins; ''Bates Problem'', named after Barry Bates; and ''Ament Arête'', named after Pat Ament.<ref name=stonecrusade/> In attempts to improve relations between climbers and park rangers, discussions over free coffee usually take place once a week from spring to autumn beside Columbia Boulder.<ref>{{Cite book |title=The Rough Guide to Yosemite, Sequoia & Kings Canyon |author=Paul Whitfield |publisher=Penguin |year=2011 |page=140 |isbn=9781848369016 }}</ref>
==References== {{Reflist}}
{{Coord|37|44|30|N|119|36|9|W|display=title}}<!-- Coords based on Camp 4 coords -->
Category:Climbing areas of California Category:Yosemite National Park
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