Around here
Around Millstone River
- Crystal Springs Wilderness Lodges & RV ResortRV park · ★ 3.310.8 mi (opens in a new tab)
- Indian Rock RV Park & CampgroundRV park · ★ 3.913.3 mi (opens in a new tab)
- Butterfly Camping ResortRV park · ★ 4.216.4 mi (opens in a new tab)
- Tip Tam Camping ResortRV park · ★ 4.317.4 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Millstone River is a 38.9 mile river near Benchmark Boat Rentals in New Jersey. Streamflow is measured at the USGS gauge Millstone River at Blackwells Mills NJ (site 01402000). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1922 to 2026
Millstone River typically runs highest in March, at a median 452 cfs, and lowest in September, at 92 cfs. The highest flow on record for any single day is 17,400 cfs, in 1971.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 292 | 185 to 547 |
| February | 348 | 220 to 660 |
| March | 452 | 292 to 758 |
| April | 343 | 224 to 586 |
| May | 226 | 148 to 380 |
| June | 137 | 94 to 240 |
| July | 105 | 64 to 199 |
| August | 101 | 59 to 193 |
| September | 92 | 56 to 164 |
| October | 101 | 70 to 176 |
| November | 166 | 100 to 326 |
| December | 273 | 166 to 500 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 104 years of record. Statistics published by the US Geological Survey for Millstone River at Blackwells Mills NJ (site 01402000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
One mapped launch sits in the mapped area of Millstone River. Ramp data comes from the USGS national boat-ramp inventory.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Millstone River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
