Crew finds 150-ton boulder likely left by glacier

Crew finds 150-ton boulder likely left by glacier
A glacial erratic rock estimated to be 300,000 pounds and two million years old lies 30 feet below ground after being fully unearthed on Wednesday, Nov. 19, 2014, at the Courtyard by Marriott construction site in Everett, Wash. A geotechnical engineer who was called out to examine it, Kurt Merriman, told The Daily Herald it's a glacial erratic, a giant rock left behind by a glacier maybe 18,000 years ago. The boulder is bigger than an SUV, weighing an estimated 150 tons. (AP Photo/The Herald, Ian Terry)

Workers digging an underground garage for a new hotel in Everett, Washington, recently struck something big about 30 feet below the surface.

This week they uncovered it—a boulder that's thousands of years old and bigger than an SUV, weighing an estimated 150 tons.

A who was called out to examine it, Kurt Merriman, told The Daily Herald (bit.ly/1yXICvv ) it's a glacial erratic—a giant rock left behind by a glacier maybe 18,000 years ago.

The site superintendent for the Halvorson Construction Group, Ben Hansen, says it may give the boulder to the city to try to find it a home.

Crew finds 150-ton boulder likely left by glacier
An excavator digs around a glacial erratic rock discovered at the Courtyard by Marriott construction site last Thursday and then fully unearthed Wednesday, Nov. 19, 2014 near the intersection of Colby Avenue and Wall Street in Everett, Wash. (AP Photo/The Herald, Ian Terry)

Explore further

Tall boulder rolls down martian hill, lands upright

© 2014 The Associated Press. All rights reserved.

Citation: Crew finds 150-ton boulder likely left by glacier (2014, November 20) retrieved 25 November 2020 from https://phys.org/news/2014-11-crew-ton-boulder-left-glacier.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments