The mere is a kettle hole lake, formed when a block of ice broke off from a retreating glacier and buried itself in sediment, eventually melting to create a depression.
It is one of nine meres and mosses designated as a Ramsar site, an international wetland conservation designation.
The surrounding woodland contains a mix of native species including oak, ash, and alder, which provide critical habitat for bird species like the reed warbler.
Colemere is unique among local meres for its relative lack of intensive commercial development, preserving a more naturalistic shoreline.
The site hosts a significant population of dragonfly and damselfly species during the summer months due to the shallow, vegetated margins of the mere.
Colemere Countryside Site is a Site of Special Scientific Interest (SSSI) located in Shropshire, centering on a 73-acre glacial mere. The site features a mix of woodland, reed beds, and wildflower meadows surrounding one of the largest meres in the region. It is part of the Shropshire Meres and Mosses landscape, formed by retreating glaciers at the end of the last Ice Age. The site includes a designated circular walking trail that traverses both open water frontage and ancient woodland. It supports a diverse ecosystem, including protected species such as the Great Crested Newt and various nesting waterfowl. The site is managed by Shropshire Council and is protected for its conservation value.
The elevated viewing area overlooking the main expanse of the mere, which captures the contrast between the reed beds and open water.
Bring binoculars as the viewing points offer excellent opportunities to spot grebes and other water birds without disturbing them.
The ground can be uneven and muddy in sections, particularly after rainfall, so waterproof footwear is recommended.
Keep dogs on a lead in areas with livestock or nesting birds to protect the local wildlife.
Do not attempt to swim in the mere, as the steep drop-offs and cold water temperatures pose significant safety risks.
Take all litter home; respect the SSSI status by staying on marked paths to prevent erosion and habitat destruction.