Upper Blue River geology clipped to the Andrews Experimental Forest, 1991

  • Creator(s): Frederick J. Swanson
  • PI(s): Frederick J. Swanson
  • Originator(s): Frederick J. Swanson
  • Other researcher(s):
  • Dates of data preparation: Dec 9 1991 - Dec 9 1991
  • Data collection status: Study collection is completed and no new collection is planned
  • Data access: Online
  • DOI:
  • Last update: Jun 7 2005 (Version 3)
<Citation>     <Acknowledgement>     <Disclaimer>    
Swanson, F. 2005. Upper Blue River geology clipped to the Andrews Experimental Forest, 1991. Long-Term Ecological Research. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2023-12-11.
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
Rock units of parts of the Blue River basin (including the Lookout Creek watershed and upper Blue River above the junction with Lookout Creek), were described by several investigators who covered different portions of the basin at different scales. A unit correlation table was developed (see below) and units were manuscripted using Priest et al. (1988) for Lookout Creek and Walker and Duncan (1989) for upper Blue River. Units were digitized and attributed using the investigators' descriptions. The upper Blue River geology layer was clipped by the H.J. Andrews boundary to create this layer. Rock unit strength was added as an attribute when the geology layer was used in a landslide hazard analysis. Rock strength was determined by Swanson based on rock type and age.

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1Upper Blue River geology clipped to the Andrews Experimental Forest MAP / METADATADATA