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Eight-year-old Loblolly pine (Pinus taeda) plots located in South Carolina were evaluated using high resolution aircraft multispectral scanner data to determine if biomass could be accurately measured. Sixteen pine plots located on both sandy and clay soils were treated with 0, 180, or 360 kg. (approximately 0, 400, or 800 lb.) of nitrogen per plot. Indices of biomass from remote sensing data were significantly correlated with in situ biomass measurements made in each plot. A ratio of infrared (9 - 1.1 μm) and red ( 65-70 μm) channels yielded the best correlation. The indices were not sensitive to differences in soil type (sandy or clay). [ABSTRACT FROM AUTHOR]