The U.S. Geological Survey-Cascades Volcano Observatory (USGS-CVO) has applied for a 20-year special use permit to install up to 5 new Lahar monitoring stations within the Carbon and White River drainages located to the NE of Mount Rainier volcano.
Location
1. Confluence of White R./West Fork White R. (private); 2. West Fork White R./Hazard Cr.; 3. Suntop; 4. Wrong Cr.; 5. Lonesome Lake; 6. Poch Cr.; 7. Crystal Mountain.
Project timeline
1
Scoping Start
03/08/2024
2
Decision
07/2025 (Estimated)
3
Implementation
07/2025 (Estimated)
NEPA / regulatory detail
| Categorical Exclusion | 32.2 (3), 36 Cfr 220.6(E)(3) |
| Special Authority | Not Applicable / Other |
| Notice and Comment Regulation | Not Subject to Regulations |
| Project Activity | Special Use Authorizations |
| U.S. Geological Survey Lahar Monitoring Network | Decision Signed Date: 07/11/2025 |
| Forests | Mt Baker-Snoqualmie National Forest |
| Districts | Snoqualmie Ranger District |
| Legal Land Description | T17N, R7E, Sec 16; T17N, R10E, Sec 26; T18N, R9E, Sec's 6, 30, 33; T18N, R10E, Sec 18; T19N, R9E, Sec 24; W.M. |