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Note: This layer is provisional. Updates will be applied in the future. 

LTAR site areas (e.g. plots or fields) where active LTAR BAU vs. ASP experiments were/are occurring within the next 24 months. Indicate location as: past, current, future. For past, indicate active dates in Start_Date and End_Date. 

This data layer is provided in two versions: a masked, public version (noted by the “_m” at the end of the file name), and an unmasked research version, available to LTAR researchers upon request. In an effort to keep some of the features created in this layer private, a Flag field is available.  This field will allow sites to specify experimental boundaries that need to be kept private.  In order to do this, the experimental AOI is intersected with a 4km grid described by PRISM data. All experimental AOIs that have a “p” flag will be masked with the intersecting 4km polygons.