Ice Age Floods rafted a two-ton igneous rock not normally found in Oregon's Willamette Valley to Tualatin. It was discovered during excavation for the new Lakeridge Junior High School. The Rhyolite is mottled yellow, brown and greenish rock which likely came from the mountains of British Columbia, Canada or Montana.
This story was widely coverd in the press. Here are links to those articles:
Tualatin Life Newspaper https://tualatinlife.com/featured/rare-geological-find-is-headed-to-tualatin/
KATU-TV Ch 2 (ABC) Rare rock discovered at Lake Oswego construction site
PSU Website Portland State professor identifies 15,000 year old boulder at site of new Lake Oswego middle school
KGW-TV (NBC) Construction crews find ancient boulder
ABC30 St. Louis Rare rock discovered at Lake Oswego construction site
UPI 2,000-pound rare rock unearthed at Oregon construction site
Newsweek Extremely rare rock dating back to ice age discovered in Oregon
Borneo Bulletin https://borneobulletin.com.bn/2000-pound-rare-rock-unearthed-at-oregon-construction-site/
Source: U.S. Department of the Interior, National Park Service
