About this river
Loutsenhizer Arroyo is a 5.7 mile river near Black Canyon Anglers in Colorado. Streamflow is measured at the USGS gauge Loutsenhizer Arroyo at Hwy 50 near Olathe CO (site 383926107593001). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2015 to 2026
Loutsenhizer Arroyo typically runs highest in August, at a median 96 cfs, and lowest in March, at 8.3 cfs. The highest flow on record for any single day is 247 cfs, in 2023.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 9.3 | 8.0 to 12 | |
| February | 8.6 | 7.0 to 10 | |
| March | 8.3 | 7.1 to 9.3 | |
| April | 52 | 39 to 65 | |
| May | 69 | 60 to 81 | |
| June | 74 | 63 to 84 | |
| July | 82 | 69 to 99 | |
| August | 96 | 80 to 118 | |
| September | 87 | 72 to 98 | |
| October | 80 | 65 to 93 | |
| November | 18 | 16 to 20 | |
| December | 13 | 11 to 15 |
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 11 years of record. Statistics published by the US Geological Survey for Loutsenhizer Arroyo at Hwy 50 near Olathe CO (site 383926107593001). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Loutsenhizer Arroyo's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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