diff --git a/bin/TerrainDatafiles/Coastal/HOWTO.txt b/bin/TerrainDatafiles/Coastal/HOWTO.txt
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+Use the "terrain load" command to import these datafiles.
+They are stored as Float-32 arrays, use the F32 import type.
+
+These files are formatted on a scale of 0 to 1, they are designed for a range of 0..108
+use the 'multiply' command to multiply them by 108 to achieve correct height values.
+
+Example ------------------
+Region# : terrain load f32 c:\opensim\datafiles\output_x0_y0.r32
+Region# : terrain multiply 108
\ No newline at end of file
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