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Anchor Reservoir water level

Reservoir, Wyoming, United States

Directions

Very high for mid-October

Surface elevation

6,369.50ft Up 1.04 ft over the last 7 days

Water stored
883 acre‑ft
6,350 6,360 6,370

History

6,3506,3606,370ftOct 12Oct 13Oct 14Oct 15Oct 166,3506,3606,370ftOct 12Oct 14Oct 16
6,3506,3606,370ftSep 19Sep 25Oct 2Oct 9Oct 166,3506,3606,370ftSep 19Oct 2Oct 16
6,3606,3806,400ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20266,3606,3806,400ftOct 2025Apr 2026Oct 2026
6,3606,3806,400ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20266,3606,3806,400ftOct 2016Oct 2021Oct 2026
6,3606,3806,400ftJanMarMayJulSepNov20266,3606,3806,400ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

At 6,369.50 ft, Anchor Reservoir is holding more water than usual for mid-October.

The median for mid-October is 6,358.10 ft, based on 36 years of readings, so the lake level is 11.40 ft above typical. On the same day last year the reading was 6,362.61 ft, a difference of +6.89 ft.

It is on the way up, by 1.04 ft over the past week. The 30-day range is 6,368.46 ft – 6,369.95 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
6,358.10 ft11.40 ft above the median for this date
Normal for this date
6,350.60 ft – 6,368.08 ft8 years in 10 fall in this range (36 years of records)
Same day last year
6,362.61 ft+6.89 ft
Lowest and highest in 30 days
6,368.46 ft – 6,369.95 ft
Lowest and highest in 12 months
6,361.85 ft – 6,377.58 ft

Boating and fishing at Anchor Reservoir

When a lake runs high, docks and swimming areas may close for a while and floating logs become a real hazard for boats.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

No rain in the last 3 days.

18 Sun 58° 45° – Wind 12 mph
19 Mon 62° 46° – Wind 16 mph
20 Tue 63° 47° – Wind 7 mph
21 Wed 62° 44° – Wind 9 mph
22 Thu 62° 47° – Wind 9 mph
23 Fri 50° 33° 0.19 in, 55% Wind 20 mph
24 Sat 43° 32° 0.02 in, 55% Wind 16 mph

Forecast: Open-Meteo

Sunrise 07:34 AM Sunset 06:28 PM Daylight 10 hr, 55 min First quarter 50%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Pilot Butte ReservoirReservoir 5,453.63 ft High 32 mi
Bull Lake ReservoirReservoir 5,775.57 ft Normal 33 mi
Wind River above Red Creek, near DuboisRiver gauge, Wind River 3.12 ft Below flood stage −0.06 ft 35 mi
Wind River near KinnearRiver gauge, Wind River 4.34 ft Below flood stage −0.11 ft 36 mi
Dinwoody Creek above Lakes, near BurrisRiver gauge, Dinwoody Creek 108 cfs Very high −10.0 cfs 37 mi
Boysen ReservoirReservoir 4,711.00 ft Normal 37 mi
Muddy Creek near ShoshoniRiver gauge, Muddy Creek 9.3 cfs Normal ±0 38 mi
Bull Lake Creek above Bull LakeRiver gauge, Bull Lake Creek 308 cfs Very high −46.0 cfs 39 mi

Questions and answers

Is Anchor Reservoir higher than last year?

Yes, it is 6.89 ft higher than on the same day last year, when the reading was 6,362.61 ft.

What is a normal level for Anchor Reservoir in mid-October?

The median for mid-October is 6,358.10 ft. In 8 years out of 10 the reading falls between 6,350.60 ft and 6,368.08 ft, based on 36 years of records.

Is Anchor Reservoir really 6,369.50 ft deep?

No. 6,369.50 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Anchor Reservoir today?

On Oct 16, 2026, the surface elevation was 6,369.50 ft. Up 1.04 ft over the last 7 days.

Is Anchor Reservoir rising or falling?

Up 1.04 ft over the last 7 days.

Is the level of Anchor Reservoir normal?

Very high for mid-October. Compared with 36 years of daily readings for this time of year.

How often is this data updated?

The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:262 (Agency page)
Coordinates
43.66390, -108.82420 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 6,369.50 ft 2026-10-16 06:00 Provisional
Water stored 883 acre‑ft 2026-10-16 06:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Anchor Reservoir (usbr:262). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/wyoming/anchor-reservoir

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