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Legend (usgs_ndc/depth_to_bedrock)

Depth to Bedrock (Graduated) (0)
< 20 < 20
20 - 40 20 - 40
40 - 60 40 - 60
60 - 80 60 - 80
80 -100 80 -100
> 100 > 100
Depth to Bedrock (Simple) (1)