DOWNLOAD RASTER IMAGERYRS-FRIS Version 5.2 is a remote-sensing based forest inventory for WA DNR State Trust Lands.Predictions are derived from three-dimensional photogrammetric point cloud data (DAP), field measurements, and statistical methods. RS-FRIS 5.2 was constructed using remote sensing data collected in 2021 and 2022, and incorporates additional depletions for selected harvests completed after the source imagery was acquired. RS-FRIS combined origin year rasters report age and origin year at 0.1 acre resolution using a hierarchy of data sources.