North American Database of Archaeological Geophysics

Database Report:

Site Name: Plum Grove Historic House Site; Site Number: _____; County: Johnson; State: IA; Country: USA; Ownership: State; Landform: Uplands above the left bank of the Iowa River;

Date of Site: AD 1844-1853; Period Type: Historic; Culture: Euroamerican; Site Type: Historic Structure; Site Size: 4 acres;

Survey Type: Magnetic Gradiometry;

Instrument: Geoscan Research FM36 Fluxgate Gradiometer; Sampling Interval: 0.125 x 1 m; Prospecting Depth: 1-1.5 m; Area Surveyed: 10,000 sq m; Date of Survey: 19-23-April-1999; Land Cover Type: _____; Ground Truthing: Yes;

Graphics/Imagery:

Magnetic gradient data at Plum Grove Historic House;

 

Survey Type: Electromagnetic Conductivity;

Instrument: Geonics EM38 Ground Conductivity Meter; Sampling Interval: 0.5 x 1 m; Prospecting Depth: 1.5 m; Area Surveyed: 10,000 sq m; Date of Survey: 19-23-April-1999; Land Cover Type: _____; Ground Truthing: Yes;

Graphics/Imagery:

Conductivity data at Plum Grove Historic House;

  

Project Name: Plum Grove Historic House Site, IA;

Reference: De Vore, S. L. (1999). Magnetic Gradient and Electromagnetic Conductivity Investigations of the Plum Grove Historic House Site, Johnson County, Iowa. National Park Service, Intermountain Support Office-Santa Fe. Prepared for the State Historica Society of Iowa, Des Moines, Iowa.

Survey by: Steven L. De Vore, National Park Service.

Survey for: State Historical Society of Iowa;

Report Location: State Historical Society of Iowa, Des Moines, IA; Report Type: CRM Report;

Abstract/Summary