Great Diamond

Welcome to Great Diamond, a Continental island in the North Atlantic Ocean, part of the majestic Atlantic Ocean. This guide offers a comprehensive overview of what makes Great Diamond unique – from its geography and climate to its population, infrastructure, and beyond. Dive into the details:
- Geography and Size: Explore the island’s size and location.
- Climate and Weather: Weather patterns and temperature.
- Topography and Nature: Uncover the natural wonders of the island.
- Infrastructure and Travelling: Insights on reaching, staying, and making the most of your visit.
- News and Headlines: Latest News.
Geography and size of Great Diamond
Size: 1.845 km²
Coastline: 7.5 km
Ocean: Atlantic Ocean
Sea: North Atlantic Ocean
Continent: North America
Great Diamond is a Small Island spanning 1.8 km² with a coastline of 7.5 km.
Archipel: –
Tectonic Plate: North America – Covers North America and parts of the Atlantic and Arctic Oceans, characterized by diverse geological features and varying levels of seismic activity.
The geographic heart of the island is pinpointed at these coordinates:
Latitude: 43.68013609 / Longitude: -70.196951
Climate and weather of Great Diamond
Climate Zone: Continental
Climate Details: Warm-Summer Humid Continental Climate
Temperature: Warm Summer
Climate Characteristics: Features warm summers and cold winters with consistent precipitation, common in higher latitudes.
Topography and nature of Great Diamond
Timezone: UTC-05:00
Timezone places: America/New_York
Max. Elevation: 27 m
Mean Elevation: 15 m
Vegetation: Evergreen Needleleaf Forest
Tree Coverage: 83%
The mean elevation is 15 m. The highest elevation on the island reaches approximately 27 meters above sea level. The island is characterized by Plains: Flat, low-lying lands characterized by a maximum elevation of up to 200 meters. On islands, plains are typically coastal lowlands or central flat areas.
Dominating Vegetation: Evergreen Needleleaf Forest
Dominated by evergreen coniferous trees such as pines and firs, which retain their needle-like leaves throughout the year. These forests are often found in cooler climates. Great Diamond has a tree cover of 83 %.
Vegetation: 4 vegetation zones – Diverse Island
Four distinct vegetation zones mark these islands as ecologically diverse. They might feature varied landscapes such as forests, beaches, grasslands, and rocky areas. Such diversity reflects the island’s complex ecological interactions and varied habitats, which can support a rich array of wildlife and plant species.
Infrastructure and Travelling to Great Diamond
Does the island have a public airport? no.
There is no public and scheduled airport on Great Diamond. The nearest airport is Portland International Jetport, located 12 km away.
Does the island have a major port? no.
There are no major ports on Great Diamond. The closest major port is PORTLAND, approximately 5 km away.
The mean population of Great Diamond is 54 per km². Great Diamond is Gently Populated. The island belongs to United States of America.
Continuing your journey, Westport is the next notable island, situated merely km away.
First day exploring Great Diamond Island Maine Island Summer Adventure



United States of America is classified as Developed region: G7: Group of Seven – Major advanced economies, including Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States. The level of income is High income: OECD.
News – Latest Updates and Headlines from Great Diamond
Stay informed with the most recent news and important headlines from Great Diamond. Here’s a roundup of the latest developments.
Please note: The data used here has been primarily extracted from satellite readings. Deviations from exact values may occur, particularly regarding the height of elevations and population density. Land area and coastline measurements refer to average values at mean high tide.