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Professional Land Surveyors of Oregon 
Willamette Stone State Heritage Site 50/150 Project

2009 is the 50th anniversary of the Professional Land Surveyors of Oregon. February 14, 2009 marked the 150th anniversary of Oregon’s admittance into the Union. PLSO’s 50/150 Project celebrated both of these significant events.


As part of the Governor’s call for statewide projects celebrating Oregon’s 150th birthday, PLSO proposed to hold a cleanup day at the Willamette Stone State Heritage Site; install new benches by the initial point; adopt the existing geocache located at the Heritage Site and hold a dedication celebration as part of the Oregon150 Take Care of Oregon Days as well as PLSO’s 50th birthday.


Workday. On May 2, volunteers met to clean up Willamette Stone State Park.
View Photo Gallery.

Park Re-Dedication on May 30, 2009.
View Photo Gallery.

Restoration of USGS Latitude Pier Established in 1896

The project is the idea of Jim McLefresh, GPS Surveyor for Spokane County. Jim has done an outstanding job researching the history of the monument and lining up permission from various sources to restore this historical pier in front of the Spokane County Courthouse. The monument
will be restored by Spokane County under the direction of the facilities director, Ron Oscarson, P.E. Both the LSAW Historical Society and Inland Empire Chapter of LSAW will
cooperate in placing a brass informational plaque at the base of 
the restored monument.


This instrument pier was believed to be used by the USGS to retrace the Washington-Idaho State boundary and establish the upper Idaho-Montana State boundary.


100th Anniversary of the International Boundary Commission

On June 7, 2008, Denny DeMeyer, representing the LSAW Historical Society and the Surveyors Historical Society, and Adam Nelson, President of the Northwest Chapter of LSAW, attended the ceremony at the Peace Arch in Blaine, WA, celebrating the 100th Anniversary of the International Boundary Commission. 


Surveyors attending from the Canadian side included the Canadian Commissioner to the IBC, Peter Sullivan from Edmonton, Alberta. He is also the Surveyor General for Canada. Also Doug Culham from Ottawa, Deputy Surveyor General of Canada (East); Michael Thomson from Victoria, BC, Surveyor General for the province of British Columbia; Robert Allen from Sechelt, chairman of the BCLS Historical and Biographical Committee and Gordon Thomson from Fort Langley, former executive director of the BCLS.


2008 David Thompson Conference

The LSAW Historical Society and Surveyors Historical Society were both represented at the 2008 David Thompson Conference held in Bonners Ferry, Idaho, June 19, 20 & 21. Featured was a "Kootenai Encampment" drawing attention to the Kootenai way of life experienced by surveyor and map maker David Thompson and his crew of voyagers between 1807 & 1811.


Almost 1/3rd of the sponsors and supporters of this event were surveying organizations from all across the United States.

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