Sharing the Fascinating Ice Age Floods Story Since 1995
In addition to presenting programs and activities about the Ice Age Floods, the Puget Lobe Chapter explores aspects of the geology and natural history of the Puget Basin and Western Washington that are complementary to the principal Floods story.
It was in this region that J Harlen Bretz, as a Seattle resident over 100 years ago, began his serious examination of the large-scale effects of lowland glaciation and de-glaciation.
Glacial ice covered most of the lowlands and left behind a number of interesting and sometimes quixotic features, including eskers, glacial grooves, mima mounds, glacial till, and erosionally streamlined bedrock. Meltwater from the glacial ice flowed away in large ice marginal channels. Many of these features are easily seen throughout the area and on LIDAR imagery.
The retreating ice left large depressions the ice sheet had buldozed out. Many of these depressions have now been filled with fresh groundwater and rising ocean waters throughout the Puget Sound area.
IAFI’s Puget Lobe Chapter serves the greater Puget Sound region.
Chapter Meetings – The Puget Lobe Chapter meets in Jan., Mar., May, Sept., and Nov., ordinarily on the first Monday of the month, except in Sept., when the meeting is usually on the second Monday.
The Chapter normally meets at Bellevue College, Bldg. R103, in the NW section of the campus. Meetings begin at 7 p.m. and are always free and open to the public. There is parking around to Bldg. R.
NOTE: Because of the wide area our chapter serves on both sides of the pond, we will continue having both in-person and a concurrent Zoom meeting to serve our members/attendees.
For more information about the chapter contact Dale Lehman by e-mail or at (530) 350-6877.
Please see the Upcoming Events or the General Events Calendar for a listing of all chapter meetings and events.
Dale Lehman
Mark Sundquist
Malcolm Cumming
Doug Huber
The Puget Lobe Chapter of the Ice Age Floods Institute had its origins in Wenatchee in 2007 during the Institute’s annual field trip. While riding in the tour bus, long-time member Mark Sundquist informally suggested to some nearby Seattle area members the possibility of starting our own Seattle Chapter. The idea was met with an enthusiastic response. Some members had been making the long drive over to Wenatchee from Seattle to attend meetings. There was also a recognition the Seattle had a tremendous amount of ice age geology of its own to offer. Later during the field trip Mark mentioned the conversation to former Institute president Dale Middleton. Dale liked the idea and thought it was worth pursuing.
During the fall of 2007 Dale and Mark had a series of meetings to lay the groundwork for establishing a Seattle chapter. Dale’s years of experience as Institute president, familiarity with Institute business, and attention to detail were invaluable. He also had an encyclopedic knowledge of the ice age floods, a love for geology, and great dedication to the work of the Institute. He had a list of greater Seattle area contacts from his work as Institute president and this list formed the genesis of the Seattle chapter’s mailing list.
On December 3, 2007, a well-attended organizational meeting of the Seattle chapter was held at the Lynnwood library. Chapter officers were elected with Mark serving as president and Dale serving as vice-president. By-laws were adopted and the name Puget Lobe was selected. By a strange coincidence, during this time the Chehalis River, the ice age outlet for the Puget Lobe drainage, experienced record flooding.
In January of 2008 the first regular meeting of the Puget Lobe Chapter was held at the Shoreline library. The meeting was again well-attended with Dale warmly greeting the arriving attendees many of whom he knew from his previous work on behalf of the Institute. Gene Kiver gave a program on the ice age floods.
In July of 2008 the Puget Lobe’s first field trip took place. It included presentations on the recessional phases of the Puget Lobe and the Carbon River Glacial Outburst Flood, and tours of the Mima Mounds and Thurston County’s Glacial Heritage Preserve.
In the fall of 2008 the Senior Center in Edmonds was procured as a regular meeting place for the chapter. With some members arriving from northern Puget Sound, some from southern Puget Sound, and some by ferry from across Puget Sound the central location adjacent to the ferry dock was convenient.
Mark served several terms as president followed by several terms by Dale.
“Scabland” – the Movie, A Google Earth Odyssey “Scabland” is a media complement to CWU Professor Nick Zentner’s 2023-2024 A-Z
(27Jan2024) This post contains the newsreels shown at the bginning of our Chapter meetings. Newsreels oroginally contain: the current presenter,
(21Feb2024) On 18 March 2924 at 7:00pm the Puget Lobe Chapter io the IAFI will have Dr Ralph A Haugerud
(06Dec23) The Puget Lobe Chapter is changing physical meeting location. We will meet at Bellevue College, Bldg “R”, Room 103,
(03 December 2023) The last ice age of Earth involved immense floods with peak flows comparable to those of
(12 October 2023) Most of the time when we discuss the Ice Age Floods, we are talking about the Missoula
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