ONTONAGON RIVER NEAR ROCKLAND, MI
USGS 04040000 · Michigan · reports discharge (live), gauge height
Reading ONTONAGON RIVER NEAR ROCKLAND, MI…
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USGS 04040000 · Michigan · reports discharge (live), gauge height
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 8:15 PM EST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 9:45 PM EDT to Nov 5, 8:15 PM EST; ranging 504 to 734 ft³/s; latest 734 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 8:15 PM EST | 734 | 5.79 | 654–1,310 |
| Nov 5, 7:15 PM EST | 734 | 5.79 | 654–1,310 |
| Nov 5, 6:15 PM EST | 728 | 5.78 | 654–1,310 |
| Nov 5, 5:15 PM EST | 728 | 5.78 | 654–1,310 |
| Nov 5, 4:15 PM EST | 723 | 5.77 | 654–1,310 |
| Nov 5, 3:15 PM EST | 723 | 5.77 | 654–1,310 |
| Nov 5, 2:15 PM EST | 718 | 5.76 | 654–1,310 |
| Nov 5, 1:15 PM EST | 712 | 5.75 | 654–1,310 |
| Nov 5, 12:15 PM EST | 712 | 5.75 | 654–1,310 |
| Nov 5, 11:15 AM EST | 707 | 5.74 | 654–1,310 |
| Nov 5, 10:15 AM EST | 702 | 5.73 | 654–1,310 |
| Nov 5, 9:15 AM EST | 702 | 5.73 | 654–1,310 |
| Nov 5, 8:15 AM EST | 702 | 5.73 | 654–1,310 |
| Nov 5, 7:15 AM EST | 702 | 5.73 | 654–1,310 |
| Nov 5, 6:15 AM EST | 696 | 5.72 | 654–1,310 |
| Nov 5, 5:15 AM EST | 691 | 5.71 | 654–1,310 |
| Nov 5, 4:15 AM EST | 696 | 5.72 | 654–1,310 |
| Nov 5, 3:15 AM EST | 691 | 5.71 | 654–1,310 |
| Nov 5, 2:15 AM EST | 691 | 5.71 | 654–1,310 |
| Nov 5, 1:15 AM EST | 691 | 5.71 | 654–1,310 |
| Nov 5, 12:15 AM EST | 686 | 5.7 | 654–1,310 |
| Nov 4, 11:15 PM EST | 686 | 5.7 | 656–1,360 |
| Nov 4, 10:15 PM EST | 680 | 5.69 | 656–1,360 |
| Nov 4, 9:15 PM EST | 680 | 5.69 | 656–1,360 |
| Nov 4, 8:15 PM EST | 675 | 5.68 | 656–1,360 |
| Nov 4, 7:15 PM EST | 665 | 5.66 | 656–1,360 |
| Nov 4, 6:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 5:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 4:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 3:15 PM EST | 654 | 5.64 | 656–1,360 |
| Nov 4, 2:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 1:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 12:15 PM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 11:15 AM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 10:15 AM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 9:15 AM EST | 654 | 5.64 | 656–1,360 |
| Nov 4, 8:15 AM EST | 660 | 5.65 | 656–1,360 |
| Nov 4, 7:15 AM EST | 654 | 5.64 | 656–1,360 |
| Nov 4, 6:15 AM EST | 654 | 5.64 | 656–1,360 |
| Nov 4, 5:15 AM EST | 649 | 5.63 | 656–1,360 |
| Nov 4, 4:15 AM EST | 649 | 5.63 | 656–1,360 |
| Nov 4, 3:15 AM EST | 644 | 5.62 | 656–1,360 |
| Nov 4, 2:15 AM EST | 644 | 5.62 | 656–1,360 |
| Nov 4, 1:15 AM EST | 639 | 5.61 | 656–1,360 |
| Nov 4, 12:15 AM EST | 634 | 5.6 | 656–1,360 |
| Nov 3, 11:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 10:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 9:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 8:15 PM EST | 634 | 5.6 | 691–1,470 |
| Nov 3, 7:15 PM EST | 634 | 5.6 | 691–1,470 |
| Nov 3, 6:15 PM EST | 634 | 5.6 | 691–1,470 |
| Nov 3, 5:15 PM EST | 634 | 5.6 | 691–1,470 |
| Nov 3, 4:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 3:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 2:15 PM EST | 629 | 5.59 | 691–1,470 |
| Nov 3, 1:15 PM EST | 624 | 5.58 | 691–1,470 |
| Nov 3, 12:15 PM EST | 619 | 5.57 | 691–1,470 |
| Nov 3, 11:15 AM EST | 619 | 5.57 | 691–1,470 |
| Nov 3, 10:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 9:15 AM EST | 604 | 5.54 | 691–1,470 |
| Nov 3, 8:15 AM EST | 609 | 5.55 | 691–1,470 |
| Nov 3, 7:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 6:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 5:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 4:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 3:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 2:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 1:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 3, 12:15 AM EST | 614 | 5.56 | 691–1,470 |
| Nov 2, 11:15 PM EST | 619 | 5.57 | 689–1,480 |
| Nov 2, 10:15 PM EST | 614 | 5.56 | 689–1,480 |
| Nov 2, 9:15 PM EST | 614 | 5.56 | 689–1,480 |
| Nov 2, 8:15 PM EST | 614 | 5.56 | 689–1,480 |
| Nov 2, 7:15 PM EST | 614 | 5.56 | 689–1,480 |
| Nov 2, 6:15 PM EST | 609 | 5.55 | 689–1,480 |
| Nov 2, 5:15 PM EST | 569 | 5.47 | 689–1,480 |
| Nov 2, 4:15 PM EST | 517 | 5.36 | 689–1,480 |
| Nov 2, 3:15 PM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 2:15 PM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 1:15 PM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 12:15 PM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 11:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 10:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 9:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 8:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 7:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 6:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 5:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 4:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 3:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 2:15 AM EST | 512 | 5.35 | 689–1,480 |
| Nov 2, 1:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 2, 12:15 AM EST | 508 | 5.34 | 689–1,480 |
| Nov 1, 11:15 PM EST | 512 | 5.35 | 668–1,420 |
| Nov 1, 10:15 PM EST | 512 | 5.35 | 668–1,420 |
| Nov 1, 9:15 PM EST | 512 | 5.35 | 668–1,420 |
| Nov 1, 8:15 PM EST | 512 | 5.35 | 668–1,420 |
| Nov 1, 7:15 PM EST | 512 | 5.35 | 668–1,420 |
| Nov 1, 6:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 5:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 4:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 3:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 2:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 1:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 12:15 PM EST | 513 | 5.35 | 668–1,420 |
| Nov 1, 11:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 10:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 9:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 8:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 7:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 6:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 5:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 4:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 3:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 2:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 1:15 AM EST | 517 | 5.36 | 668–1,420 |
| Nov 1, 1:15 AM EDT | 517 | 5.36 | 668–1,420 |
| Nov 1, 12:15 AM EDT | 517 | 5.36 | 631–1,300 |
| Oct 31, 11:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 10:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 9:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 8:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 7:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 6:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 5:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 4:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 3:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 2:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 1:15 PM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 12:15 PM EDT | 522 | 5.37 | 631–1,300 |
| Oct 31, 11:15 AM EDT | 522 | 5.37 | 631–1,300 |
| Oct 31, 10:15 AM EDT | 522 | 5.37 | 631–1,300 |
| Oct 31, 9:15 AM EDT | 522 | 5.37 | 631–1,300 |
| Oct 31, 8:15 AM EDT | 522 | 5.37 | 631–1,300 |
| Oct 31, 7:15 AM EDT | 518 | 5.36 | 631–1,300 |
| Oct 31, 6:15 AM EDT | 513 | 5.35 | 631–1,300 |
| Oct 31, 5:15 AM EDT | 513 | 5.35 | 631–1,300 |
| Oct 31, 4:15 AM EDT | 509 | 5.34 | 631–1,300 |
| Oct 31, 3:15 AM EDT | 513 | 5.35 | 631–1,300 |
| Oct 31, 2:15 AM EDT | 513 | 5.35 | 631–1,300 |
| Oct 31, 1:15 AM EDT | 513 | 5.35 | 631–1,300 |
| Oct 31, 12:15 AM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 11:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 10:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 9:15 PM EDT | 518 | 5.36 | 611–1,350 |
| Oct 30, 8:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 7:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 6:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 5:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 4:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 3:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 2:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 1:15 PM EDT | 513 | 5.35 | 611–1,350 |
| Oct 30, 12:15 PM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 11:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 10:15 AM EDT | 504 | 5.33 | 611–1,350 |
| Oct 30, 9:15 AM EDT | 504 | 5.33 | 611–1,350 |
| Oct 30, 8:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 7:15 AM EDT | 504 | 5.33 | 611–1,350 |
| Oct 30, 6:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 5:15 AM EDT | 504 | 5.33 | 611–1,350 |
| Oct 30, 4:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 3:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 2:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 1:15 AM EDT | 509 | 5.34 | 611–1,350 |
| Oct 30, 12:15 AM EDT | 509 | 5.34 | 594–1,360 |
| Oct 29, 11:15 PM EDT | 509 | 5.34 | 594–1,360 |
| Oct 29, 10:15 PM EDT | 509 | 5.34 | 594–1,360 |
| Oct 29, 9:45 PM EDT | 509 | 5.34 | 594–1,360 |
Map of USGS gauge 04040000 and the river around it
Where ONTONAGON RIVER NEAR ROCKLAND, MI sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. Michigan DNR publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Michigan rule: 68°F.
Species list not on file for this gauge. Check the Michigan Department of Natural Resources: Michigan fish stocking · Michigan fishing regulations.
Normal for Nov 5: 654–1,310 ft³/s (middle half of 84 years of record). Now: 734 ft³/s, normal.
Normal for this date. 734 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 84 years of record (1943–2026): 10th 512, 25th 654, median 949, 75th 1,310, 90th 1,890 ft³/s.
Daily means on record for Nov 5: lowest 393 ft³/s, highest 4,470 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+8.7% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 5.79 ft stage, 761 ft³/s at Nov 5, 7:15 PM EST (NWS gauge RKLM4; its stage datum can differ from the USGS gauge height).
Forecasts are issued as needed during times of high water, but are not routinely available.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 8:38 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.