Big Lost River near Leslie water level

Name: Big Lost River near Leslie water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Big Lost River, Idaho, United States

Directions

Low for mid-October

Water level

4.27ft Down 0.05 ft over the last 24 hours

Measured Oct 19, 2026, 01:45 AM MDT (1 hour ago)

Flow: 77.9 cfs

History

7 days

Water level

What this means

Low water at Big Lost River near Leslie: the gauge reads 4.27 ft, below normal for mid-October.

It is still going down, by 0.05 ft over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 4.27 ft – 4.69 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 5 years of daily readings for this time of year. How to read levels

Paddling and fishing conditions

At low levels, plan for shorter paddling trips and expect to walk your boat through a few shoals.

Weather at the gauge

No rain in the last 3 days.

17 Sat 59° 36° – Wind 13 mph

18 Sun 61° 38° – Wind 13 mph

19 Mon 61° 40° – Wind 9 mph

20 Tue 61° 47° 0.08 in, 24% Wind 11 mph

21 Wed 61° 45° 0.04 in, 24% Wind 11 mph

22 Thu 62° 46° 0.15 in, 71% Wind 9 mph

23 Fri 49° 39° 0.27 in, 71% Wind 12 mph

Forecast: Open-Meteo

Sunrise 07:54 AM Sunset 06:45 PM Daylight 10 hr, 51 min First quarter 57%

Map

Other gauges on the Big Lost River

Gauge	Level	Compared with normal	24 hours	Distance
Big Lost River at Howell Ranch near ChillyRiver gauge, Big Lost River	1.00 ft	Below flood stage	±0	29 mi
Big Lost River below Mackay Reservoir near MackayRiver gauge, Big Lost River	1.67 ft	Below flood stage	±0	11 mi
Big Lost River below Moore Diversion near MooreRiver gauge, Big Lost River	0.0 cfs	Low	±0	7 mi
Big Lost River at Arco at Sunset RoadRiver gauge, Big Lost River	0.0 cfs	Normal	±0	17 mi
Big Lost River near ArcoRiver gauge, Big Lost River	2.00 ft	Below flood stage	±0	22 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Antelope Creek near DarlingtonRiver gauge, Antelope Creek	4.62 ft	Below flood stage	±0	9 mi
Lower Cedar Creek above Divs near MackayRiver gauge, Lower Cedar Creek	10.8 cfs	Normal	±0	9 mi
Little Lost River above Flood Diversion near HoweRiver gauge, Little Lost River	36.1 cfs	Low	±0	18 mi
Warm Springs Creek below Diversion near MackayRiver gauge, Warm Springs Creek	42.7 cfs	High	+2.5 cfs	19 mi
Little Lost River near HoweRiver gauge, Little Lost River	2.71 ft	Below flood stage	±0	19 mi
Little Lost River below Wet Creek near HoweRiver gauge, Little Lost River	1.14 ft	Below flood stage	−0.01 ft	22 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Big Lost River near Leslie today?

On Oct 19, 2026, 01:45 AM MDT, the water level was 4.27 ft. Down 0.05 ft over the last 24 hours.

Is Big Lost River near Leslie rising or falling?

Down 0.05 ft over the last 24 hours.

Is the level of Big Lost River near Leslie normal?

Low for mid-October. Compared with 5 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13130300 (Agency page)
Coordinates: 43.85938, -113.46667 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	4.27 ft	2026-10-19 07:45	Provisional
Flow	77.9 cfs	2026-10-19 07:45	Provisional

Download

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How to cite

U.S. Geological Survey: Big Lost River near Leslie (usgs:13130300). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/big-lost-river-near-leslie

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer