Unit is named the Hubbard Creek Member of the Tyee Formation. Consists of thin-bedded, soft sandstone and siltstone. Thickness is 120 m. Overlies the Tyee Mountain Member; underlies the Baughman Member; both of the Tyee Formation. Age is middle Eocene. (B1520)
Source: GNU records (USGS DDS-6; Menlo GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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