In 1915 a joint committee from the Oregon Historical Society, Oregon Geographic Board, and the Mazamas, at the request of the United Highway Commission, suggested new names and renaming of places along the newly completed Columbia River Highway. This list was submitted to the United States Geographic Board for the final approval. "Katant Rock" was suggested for today's "Katanai Rock".
"... The committee recommends that the high mountain between Tumalt Creek and St. Peter's Dome be called Yeon Mountain, for the very obvious reason that Mr. Yeon has given so much time and money in the construction of the highway and should have his name attached to some prominent feature. The spire directly across Leveens Creek from St. Peter's Dome has been named Katant Rock, from an Indian word meaning "Place of rocks. ..." ... ["Morning Oregonian", April 1, 1915]
Above, Katanai Rock on the left, St. Peter's Dome on the right.
Olson describes two approaches to the rock for trained and prepared explorers and climbers. However, the first, from the old school building in Dodson, may now be private property and may not be a good place to park or depart from any more.
This approach starts in the same way as the approach to St. Peter's Dome, described on that page...
http://blog.oregonlive.com/climbing/2011/12/100_days_100_miles_100_climbs_40.html