Lone Tree-Owl HUC8 10190008
A 1,489 km² sub-basin of the Missouri region in CO, WY. 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
47
Stressed
Drought index
331
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
1,301
35 springs · 994 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 331 | 100 | — | — |
Top water assets
- 76Central Lateral — Owl Creekwell
- 76Owl Creek Ditch — Owl Creekwell
- 76Mcclure Well 1-13621-R — Groundwater: South Platte Riverwell
- 76Mantey Ditch 2 — Lone Tree Creekwell
- 76Everist Pond 2 — Lone Tree Creekwell
- 76Mckelvey Seep Ditch — Lone Tree Creekwell
- 76Mantey Res 1 — Lone Tree Creekwell
- 76Cozzens Well 3-1509 — Groundwater: South Platte Riverwell
- 76Spring Creek Ditch 1 — Spring Creekwell
- 76Widmaier Pond 10 — South Platte Riverwell