Mount St. Helens, Washington
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| Sub-Basin / Reach | Total number cross sections surveyed annually during low flow (Number surveyed after storms) |
Total number cross sections surveyed annually during low flow (Number surveyed after storms) |
Numbering sequence |
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| Grizzly Creek | 5 (0) | 8 (0) | GR850-GR870 (80-82)
GR850-GR876 (83-85) |
| Polar Star Mine | 2 (0) | 2 (0) | GR880-GR890 |
| Shultz Creek | 4 (0) | 3 (0) | GR900-GR915 |
| Gage | 0 (0) | 4 (0) | GR924-GR927 |
| Hatchery | 6 (0) | 5 (0) | GR930-GR960 (80-82)
GR930-GR955 (83-85) |
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| Loowit - Crater | 2 (0) | 2 (0) | LO010-LO020 |
| Loowit - Pumice Plain | 3 (0) | 3 (0) | LO030-LO040 |
| Truman | 1 (1) | 4 (4) | TR065 (80-82)
TR060-TR070 (83-85) |
| Carbonate Springs | 4 (1) | 4 (1) | CS075-CS085 |
| Castle Creek | 0 (0) | 6 (3) | CA200-CA225 |
| South Coldwater | 0 (0) | 6 (6) | SC230-SC238 |
| Coldwater Creek | 3 (0) | 3 (0) | CW250-CW280 |
| Maratta Creek | 1 (1) | 1 (1) | MR290 |
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| Pumice Plain | 0 (0) | 5 (1) | NF100-NF117 |
| Coldwater | 1 (1) | 2 (2) | NF130 (80-82)
NF120-NF130 (83-85) |
| Elk Rock | 3 (2) | 5 (3) | NF310-NF325 (80-82)
NF300-NF327 (82-83) |
| Bear Creek | 5 (1) | 5 (1) | NF330-NF350 |
| Lower Avalanche | 3 (1) | 4 (1) | NF365-NF375 (80-82)
NF360-NF375 (83-85) |
| N-1 | 2 (1) | 2 (1) | NF390-NF395 |
| Camp Baker | 8 (1) | 10 (1) | NF410-NF445 (80-82)
NF400-NF445 (83-85) |
| Salmon Reach A | 3 (1) | 3 (1) | NF465-NF475 |
| Kid Valley | 3 (0) | 5 (0) | NF500-NF515 (80-82)
NF495-NF520 (83-85) |
| Salmon Reach B | 5 (2) | 5 (1) | NF535-NF560 |
| Salmon Reach C | 4 (1) | 4 (1) | NF575-NF590 |
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| Sheep Canyon | 0 (0) | 6 (0) | SF610-SF640 |
| Disappointment | 1 (0) | 2 (0) | NF675 (80-82)
SF660-SF675 (83-85) |
| Spotted Buck | 7 (1) | 7 (1) | SF685-SF715 |
| Above S-1 | 5 (0) | 6 (0) | SF730-SF750 (80-82)
SF720-SF750 (83-85) |
| Mouth | 12 (3) | 12 (3) | SF760-SF810 |
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| Coal Bank Bridge | 1 (0) | 3 (0) | TL1000 (80-82)
TL1000-TL1010 (83-85) |
| Spool | 5 (0) | 8 (0) | TL1020-TL1040 (80-82)
TL1015-TL1044 (83-85) |
| Tower Bridge | 4 (1) | 5 (1) | TL1050-TL1070 (80-82)
TL1050-TL1070 (83-85) |
| Burma Gorge | 6 (1) | 6 (1) | TL1080-TL1105 |
| Highway 99 | 4 (1) | 4 (1) | TL1115-TL1130 |
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