A tunnel runs through it an inside view of the Tualatin Mountains /
| Main Author: | Walsh, Ken. |
|---|---|
| Other Authors: | Portland State University., Shannon & Wilson., Tri-County Metropolitan Transportation District of Oregon., Geological Survey (U.S.) |
| Format: | Electronic |
| Language: | English |
| Published: |
[Reston, Va.] :
U.S. Dept. of the Interior, U.S. Geological Survey,
2011.
|
| Physical Description: |
1 online resource (2 sections) : color. |
| Series: |
Scientific investigations map ;
3144. |
| Subjects: | |
| Online Access: |
https://purl.fdlp.gov/GPO/gpo5463 |
https://purl.fdlp.gov/GPO/gpo5463
CMU Gov Pub Electronic
Electronic Resource Click Here| Location | Call Number: | Status |
|---|---|---|
| CMU Gov Pub Electronic | I 19.91/3:3144 | Available |