Rivermatics

USGS Streamgage 10293400

E Walker River at Ivy Ranch Brg near Mason, NV

E Walker River at Ivy Ranch Brg near Mason, NV is USGS streamgage 10293400 in Nevada, monitoring river discharge in hydrologic subbasin 16050301. It sits on the E Walker River, alongside 5 other gauges Rivermatics tracks on the same river. Discharge records at this site go back to 2025. Typical flow runs near 122.8 cfs in July and 113.6 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Nevada
Gauge elevation
4,706 ft
Subbasin (HUC-8)
16050301
Coordinates
38.7185, -118.97956
USGS site number
10293400
Records begin
2025-04-30 (1 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for E Walker River at Ivy Ranch Brg near Mason, NV. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
186 200 211
171 199 220
160 195 222
150 190 222
140 186 222
129 182 222
124 180 222
111 174 221
93 166 218
89.3 163 218
94.4 168 232
65.7 156 225
60.4 150 220
66.4 149 216

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 1 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January — 48.9 —
February — 57.8 —
March — 154.6 —
April — 113.6 —
May — 124.3 —
June — 146 —
July — 122.8 —
August — 107.7 —
September — 78.3 —
October — 61.4 —
November — 46.1 —
December — 42.6 —

All values in cubic feet per second (cfs).

Common questions

When does E Walker River at Ivy Ranch Brg near Mason, NV normally run highest?
March, on the long-term record. The median daily flow that month is about 154.6 cfs, against 42.6 cfs in December, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
How long has E Walker River at Ivy Ranch Brg near Mason, NV been measured?
Discharge records at USGS site 10293400 begin in 2025, about 1 years, covering roughly 462 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for E Walker River at Ivy Ranch Brg near Mason, NV?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is E Walker River at Ivy Ranch Brg near Mason, NV?
The gauge sits at 38.7185, -118.97956, in Nevada, in hydrologic subbasin 16050301, at an elevation of about 4,706 feet.
Can I use E Walker River at Ivy Ranch Brg near Mason, NV data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the E Walker River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the E Walker River in full.

Other gauges in this subbasin