North American Database of Archaeological Geophysics

Database Report:

Site Name: Effigy Mounds National Monument (3); Site Number: _____; County: Clayton; State: IA; Country: USA; Ownership: Federal - NPS; Landform: River Terrace;

Date of Site: AD 500-1300; Period Type: Prehistoric; Culture: Late Woodland; Site Type: Mounds; Site Size: 1,481 acres;

Survey Type: Magnetic Gradiometry;

Instrument: Geoscan Research FM-36; Sampling Interval: 0.125 x 0.5 m; Prospecting Depth: 1-1.5 m; Area Surveyed: 200 sq m; Date of Survey: 10-May-1999 to 14-May-1999; Land Cover Type: Forest-Clearing; Ground Truthing: No;

Graphics/Imagery:

Survey Type: Electrical Resistivity/Resistance;

Instrument: Geoscan Research RM-15; Sampling Interval: 0.5 x 0.5 m; Prospecting Depth: 0.5 m; 1 m; 1.5 m; Area Surveyed: 200 sq m; Date of Survey: 10-May-1999 to 14-May-1999; Land Cover Type: Forest-Clearing; Ground Truthing: No;

Graphics/Imagery:

Resistance image at 0.5 m depth, Conical Mound 45, Effigy Mounds National Monument, IA;	Resistance image at 1 m depth, Conical Mound 45, Effigy Mounds National Monument, IA;
Resistance image at 1.5 m depth, Conical Mound 45, Effigy Mounds National Monument, IA;

Survey Type: Electromagnetic Conductivity;

Instrument: Geonics EM38; Sampling Interval: 0.5 x 0.5 m; Prospecting Depth: to 1.5 m; Area Surveyed: 200 sq m; Date of Survey: 10-May-1999 to 14-May-1999; Land Cover Type: Forest-Clearing; Ground Truthing: No;

Graphics/Imagery:

Survey Type: Magnetic Susceptibility;

Instrument: Geonics EM38; Sampling Interval: 1 x 1 m; Prospecting Depth: _____; Area Surveyed: 200 sq m; Date of Survey: 10-May-1999 to 14-May-1999; Land Cover Type: Forest-Clearing; Ground Truthing: No;

Graphics/Imagery:

Project Name: Effigy Mounds, IA (3);

Reference: De Vore S.L. (1999). Investigations at Effigy Mounds National Monument during the 1999 "Recent Advances in Archeological Prospection Techniques" Workshop, May 10-14, 1999. Cultural Resources and National Register Program Services, Intermountain Support Office, Santa Fe, New Mexico. Submitted to Effigy Mounds National Monument, Harpers Ferry, Iowa.

Survey by: Steven L. De Vore, Cultural Resources and National Register Program Services, Intermountain Support Office, P.O. Box 728, 1100 Old Santa Fe Trail, Santa Fe, NM 87504-0728. Currently at: Midwest Archeological Center, Federal Building, Room 474, 100 Centennial Mall North, Lincoln, NE 68508-3873.

Survey for: U.S. National Park Service;

Report Location: Midwest Archeological Center, Lincoln, NE; Report Type: CRM Report;

Abstract/Summary