Located on the St. Louis River Estuary in Superior, Wisconsin
A Gathering Place for Learning and Play
Enjoy, explore and experience!
The Estuarium is open Wednesdays, Fridays, and Saturdays 10:00a.m.—5:00p.m. Enjoy, explore and experience the Estuarium.
FREE ADMISSION!
Happening at the Lake Superior Reserve
Volunteer at the Estuarium!
You could become a volunteer docent at the coolest estuary museum there is! Sign up to attend a docent training on May 27 or 31.
The River Walks are back
Current Conditions on the St. Louis River Estuary
Barker's Island
Dec 02, 2024 10:00 AM
This may not be current data
Water Quality
Water Temperature
32° F
0.8° C
Specific Conductivity
0.27 mS/cm
Dissolved Oxygen
96.1%
Dissolved Oxygen
13.7 mg/L
Salinity
0.1 PSU
Depth
Missing Data
Missing Data
pH
8.1 standard units
Turbidity
12 FNU/NTU
Chorophyl Fluoresence
19.3 ug/L
All Data is property of NOAA Office for Coastal Management (OCM) / National Estuarine Research Reserve System (NERRS)
Barker's Island
Nov 08, 2023 2:45 PM
This may not be current data
Nutrients
Orthophospate
0.021 mg/L as P
Ammonium
0.121 mg/L as N
Nitrite
0.013 mg/L as N
Nitrate
0.385 mg/L as N
Nitrite + Nitrate
0.398 mg/L as N
Chlorophyll
3.03 ug/L
All Data is property of NOAA Office for Coastal Management (OCM) / National Estuarine Research Reserve System (NERRS)
Pokegama Bay
May 19, 2025 12:00 AM
Weather
Air Temp
36.7° F
2.6° C
Wind Speed
2.6 mps (4.5 mph)
Max Wind Speed
5.3 mps (11.2 mph)
Wind Dir
158°
Rel Humidity
87% saturated
Bar Pressure
1022 millibars
Cum Precip
2.5mm
Total PAR
0.0mmol/m2/15mins
All Data is property of NOAA Office for Coastal Management (OCM) / National Estuarine Research Reserve System (NERRS)
How to Pronounce
Lake Superior National Estuarine Research Reserve