Boat launches
Hills and mountains
Nearby lakesNEARBY LAKES
Distance is measured from lake centroid to lake centroid
- Beaver Dam Pond (8567) 0.50 miles east
- Great Meadow Pond (6414) 0.69 miles north
- The Bowl (4454) 1.70 miles southeast
- Eagle Lake (4606) 1.98 miles west
- Bubble Pond (4452) 2.03 miles southwest
- New Mills Meadow Pond (5946) 2.55 miles northwest
- Halfmoon Pond (0463) 2.87 miles northwest
- Aunt Betty Pond (4588) 3.05 miles west
- Witch Hole Pond (4458) 3.14 miles northwest
- Upper Breakneck Pond (9657) 3.23 miles northwest
- Lower Breakneck Pond (9655) 3.23 miles northwest
- Jordan Pond (4608) 3.23 miles southwest
The Tarn
Bar Harbor, Hancock, Maine
MIDAS 4456
| Area (acres): | 19 |
| Perimeter (miles): | 0.9 |
| Mean Depth (feet): | 3 |
| Max Depth (feet): | 4 |
| Delorme Page: | 16 |
| Fishery Type: | Bait |
| Invasive Aquatic Plant Infestation: | None known |
Other Lake & Watershed Information
Water Quality
Monitoring Stations
Click the images below to open in new window
Boating & Fishing Regulations for this and other Maine waters are available here.
Click the printer icon for printable depth map
Maine DEP Lake Scorecard 
The Scorecard summarizes many types of lake data into one color-coded graphic, based on current conditions or trends in the lake's health. The color is indicative of an overall condition assessment of each category: blue = good, yellow = fair, and red = poor. Grey indicates there is not enough data for an assessment.
A small number of lakes have more than one hydrologic basin, and there will be scorecards for each basin.
Click the Scorecard image or images below to open the interactive Scorecard and learn more about each of the categories and their respective parameters -- and to get involved!
Questions? Email: MaineDEPLakeScorecard@Maine.gov
To learn more about the scorecard and to have the opportunity to ask the DEP questions, watch this webinar:
Understanding the New Maine DEP Lake Scorecard