Research, education, outreach and stewardship along Lake Superior’s coast

Located on the St. Louis River Estuary in Superior, Wisconsin

Improving the understanding of Lake Superior’s coast and estuaries

The Lake Superior National Estuarine Research Reserve works in partnership to improve the understanding of Lake Superior’s coast and estuaries. We address issues affecting the watershed through integration of research, system-wide monitoring, education, coastal training and stewardship.

Research

Monitoring

Education

Coastal Training

Stewardship

A Gathering Place for Learning and Play

Enjoy, explore and experience!

FREE ADMISSION! Come enjoy special activities the first Saturday of every month.

In September, the Estuarium is open Fridays and Saturdays from 10:00a.m.—2:00p.m.
Starting in October, the Estuarium is open every Friday and the first Saturday of the month from 10:00a.m.—2:00p.m.

Visit Lake Superior Estuarium

The front of a red building with tan trim

Happening at the Lake Superior Reserve

Learning from Ishkode fire event March 27, 2026 from 5:00 to 7:30.

Learning from Ishkode (f i r e): A Celebration and Exhibit Opening

Join us at the Lake Superior Estuarium for the opening of a NEW exhibit that shares the history and importance of Ojibwe cultural fire – Ishkode – at Wisconsin and Minnesota Points.

A mosaic of images showcasing Rivers2Lake teachers and mentors in action, behind text announcing that applications for the program are open.

Applications for the 2026-2027 cohort of Rivers2Lake teachers are now open

Learn how to get your students learning outside using local examples in your teaching. Visit rivers2lake.org to learn more and apply.

Current Conditions on the St. Louis River Estuary

A water quality station monitoring a body of water

Barker's Island

Nov 25, 2025 9:30 AM

This may not be current data

Water Quality

Water Temperature
37.4° F
3.8° C

Specific Conductivity
0.22 mS/cm

Dissolved Oxygen
94.6%

Dissolved Oxygen
12.5 mg/L

Salinity
0.1 PSU

Depth
3.28 ft
1.27 m

pH
7.9 standard units

Turbidity
6 FNU/NTU

Chorophyl Fluoresence
Missing Data

All Data is property of NOAA Office for Coastal Management (OCM) / National Estuarine Research Reserve System (NERRS)

Barker's Island

Nov 07, 2024 6:00 AM

This may not be current data

Nutrients

Orthophospate
0.015 mg/L as P

Ammonium
0.102 mg/L as N

Nitrite
Missing Data

Nitrate
Missing Data

Nitrite + Nitrate
0.434 mg/L as N

Chlorophyll
8.69 ug/L

All Data is property of NOAA Office for Coastal Management (OCM) / National Estuarine Research Reserve System (NERRS)

Pokegama Bay

Mar 26, 2026 1:00 PM

Weather

Air Temp
33.3° F

0.7° C

Wind Speed
1.9 mps (2.2 mph)

Max Wind Speed
5.0 mps (11.2 mph)

Wind Dir
140°

Rel Humidity
77% saturated

Bar Pressure
1018 millibars

Cum Precip
0.0mm

Total PAR
472.0mmol/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