Around here
Around Little Rock River
Public land: USGS PAD-US
About this river
Little Rock River is a 33.2 mile river. Streamflow is measured at the USGS gauge Rock River near Rock Valley, IA (site 06483500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1949 to 2026
Little Rock River typically runs highest in April, at a median 573 cfs, and lowest in January, at 51 cfs. The highest flow on record for any single day is 109,000 cfs, in 2024.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 51 | 19 to 176 |
| February | 73 | 18 to 248 |
| March | 426 | 133 to 1,120 |
| April | 573 | 253 to 1,535 |
| May | 508 | 208 to 1,220 |
| June | 533 | 192 to 1,290 |
| July | 305 | 122 to 714 |
| August | 145 | 63 to 314 |
| September | 106 | 45 to 256 |
| October | 108 | 47 to 313 |
| November | 124 | 55 to 391 |
| December | 88 | 38 to 271 |
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 78 years of record. Statistics published by the US Geological Survey for Rock River near Rock Valley, IA (site 06483500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Little Rock River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Little Rock 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.
