Featured Lake
Eagle Lake (Hancock County)

Of the 9 Great Ponds located wholly within Acadia National Park (ANP), Eagle Lake is the largest - 466 acres, with a maximum depth of 110 feet. (Long Pond, which borders ANP, is the largest lake on Mount Desert Island, and is approximately twice the size of Eagle Lake in terms of surface area.) One of the most visited carriage roads in ANP circles Eagle Lake.

Secchi data are available from the early 1980s, annual averages ranging from 8.7m to 12.8m (28-42 ft). A summary of water quality parameters is here. Eagle Lake is the water supply for Bar Harbor.

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What's New?
2024 Cyanobacteria Aggregation Reports

This map shows reports of cyanobacteria aggregations across Maine received by LSM and our partners during the 2024 field season. It also highlights some lakes that are of interest but we did not have any reports on in 2024. Built using ArcGIS software, this map serves as both a geographic snapshot and an awareness tool for communities near affected lakes.

Help us monitor Maine’s lakes! Report cyanobacteria aggregations via email at [email protected] or download the BloomWatch app which can be found on our website.

Click here for previous What's New stories

Lake Stewards of Maine
Webinar Series

Did you know Lake Stewards of Maine hosts a webinar series with Maine Lakes? This year starting in January we will have monthly webinars on important topics related to Maine’s lakes.

• Jump into Lake Advocacy - January 15, 2025, at 12:00 PM and January 16, 2025 at 6:00 PM
• Hidden Gems of Maine’s Waters: Our Unique and Uncommon Fish - February 20, 2025, at 12:00 PM
• Contaminants of Emerging Concern in Minnesota’s Surface Water: What 20 years of monitoring is telling us - March 11, 2025 at 12:00 PM
• Celebrating 20 Years of LakeSmart! - April 10, 2025 at 6:00 PM
• Our Shore: Living Shorelines and Nature-based Solutions for Erosion Control - May 8, 2025 at 12:00

More information and registration can be found on:

https://www.lakestewardsofmaine.org/2025-lakes-webinar-series/

Lake Stewards of Maine

Lake Stewards of Maine is always looking for more interested volunteers to help us protect lakes. You can join us by filling out the form on our website. We will contact you and get you signed up! Thanks for helping do your part to protect Maine's incredible lakes.

Join US!

Current Conditions

Click here to view current water quality conditions on a representative sample of Maine lakes during summer, or view which lakes have experienced ice-cover in the fall and ice-out in the spring.

Get Involved

The majority of data on lakesofmaine.org comes from certified volunteer citizen scientists. If you are interested in finding a monitoring opportunity, please visit Lake Stewards of Maine or contact our office at 207-783-7733. Email is [email protected]