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Images: letchworth.jpg
Site Name: Letchworth Mounds, Florida
Site Number: 8JE337
County: Jefferson
State: Florida
Country: USA
Surveyed by: Jami J. Lockhart with Dorothy G. Neely, and Dr. Ryan Wheeler
References:
Ownership: State of Florida
Landform: Inland woodland
Date of Site: ~ A.D. 200 - 900
Period Type: Prehistoric
Culture: Native American
Site Type: Ceremonial Mound Complex
Site Size: Undetermined
Survey Type: Electrical resistance (R), Magnetometry (M), Electromagnetic Conductivity (C), Magnetic Susceptibility (S), Ground Penetrating Radar (G)
Instruments:
R = Geoscan RM15 with multiplexer
M = Geoscan FM36 gradiometer
C = Geonics EM38B
S = Geonics EM38B
G = GSSI SIR 2000, 400MHz antenna
Sampling Interval:
R = 50cm sample, 50cm traverse
M = 25cm sample, 50cm traverse
C = 50cm sample, 50cm traverse
S = 50cm sample, 50cm traverse
G = Continuous sample, 50cm traverse
Prospection Depth:
R = 50cm
M = 1.5m
C = 1m
S = 60cm
G = 2 to 3m
Cumulative Area Surveyed: ~ 2,400 sq. m.
Date of Survey: November 2004
Land Cover Type: Mowed, Tall Grass, Trees
Ground Truthing:
