North American Database of Archaeological Geophysics

Database Report:

Site Name: Fort Clatsop National Memorial; Site Number: _____; County: Clatsop; State: OR; Country: USA; Ownership: Federal - NPS; Landform: River Terrace;

Date of Site: AD 1805-1806; Period Type: Historic; Culture: Euro-american; Site Type: Military Post; Site Size: _____;

Survey Type: Magnetometry;

Instrument: Geoscan Research FM-36; Geometrics G856 Proton Magnetometer; Geometrics G858 Cesium Gradiometer; Sampling Interval: 0.5 x 0.5 m; Prospecting Depth: 1-1.5 m; Area Surveyed: 1/3 ha; Date of Survey: August 9-10, 1996; July 25-30, 1997; June 9-13, 1998; and April 11, 17-18, 1999; Land Cover Type: _____; Ground Truthing: Yes;

Graphics/Imagery:

Fort Clatsop magnetic survey, all seasons, clipped at +/- 500 nT;	Fort Clatsop magnetic survey, all seasons, clipped at +/- 130 nT;
Fort Clatsop magnetic map showing the possible Smith house area;	1997 Fort Clatsop magnetic map showing the locations of previously excavated trenches;

Project Name: Fort Clatsop National Memorial, OR;

Reference: Weymouth, J. W. (2001). The Integration of Four Seasons Magnetic Surveys at Fort Clatsop National Memorial. University of Nebraska, Lincoln, Nebraska. Submitted to the Fort Clatsop National Memorial, National Park Service, Astoria, Oregon.

Survey by: John W. Weymouth, Department of Physics and Astronomy, University of Nebraska, 116 Brace Lab, P.O. Box 880111, Lincoln, NE, 68588-0111, USA; Phone: 402-472-2770; Fax: 402-472-2879; E-mail: weymouth@unlinfo.unl.edu; Ken Karsmizki, Museum of the Rockies, Bozeman, MT.

Survey for: U.S. National Park Service;

Report Location: Fort Clatsop National Memorial, Astoria, Oregon; Report Type: CRM Report;

Abstract/Summary