Arkansas Headwaters HUC8 11020001
A 7,938 km² sub-basin of the Arkansas-White-Red region in CO. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
27
Critical
Drought index
429
Exceptional
Area in D2+
100%
39.19% exceptional (D4)
Gauges below normal
100%
of 7 reporting
Median flow
43%
p6 of record
Water assets
4,889
145 springs · 867 wells
USGS gauges (9)
- HALFMOON CREEK NEAR MALTA, CO070830006 cfsp5 · much below normal
- ARKANSAS RIVER NEAR LEADVILLE, CO0708120010 cfsp5 · much below normal
- EF ARKANSAS R AT US HIGHWAY 24, NR LEADVILLE, CO.070793009 cfsp6 · much below normal
- ARKANSAS RIVER AT PARKDALE, CO.07094500210 cfsp6 · much below normal
- ARKANSAS RIVER NEAR NATHROP, CO07091200191 cfsp8 · much below normal
- ARKANSAS RIVER BELOW GRANITE, CO07087050119 cfsp9 · much below normal
- ARKANSAS RIVER BELOW EMPIRE GULCH NEAR MALTA, CO0708371041 cfsp14 · below normal
- HALFMOON CR BL HALFMOON DIVERSION NR LEADVILLE, CO070832006 cfsno long-term record
- ARKANSAS RIVER AT GRANITE, CO.07086000465 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 429 | 100 | 7/7 | p6 |
Top water assets
- 69Arkansas River At Granite, Co.river
- 69Spring Creekriver
- 69Arkansas River At Parkdale, Co.river
- 69Arkansas River Near Nathrop, Coriver
- 69Ef Arkansas R At Us Highway 24, Nr Leadville, Co.river
- 69Grape Creekriver
- 69Arkansas River Below Granite, Coriver
- 69Lake Creekriver
- 69Halfmoon Cr Bl Halfmoon Diversion Nr Leadville, Coriver
- 69Pine Creekriver