Collyweston Slate Mine is a 0.9-hectare (2.2-acre) geological Site of Special Scientific Interest Northamptonshire.

[1][2] It is a Geological Conservation Review site.

[3] This slate mine was operated until 1963, quarrying Collyweston slate, which dates to the Jurassic.

The shaft exposes a section described by Natural England as "stratigraphically important", and it is the type locality for the slate.

[4] The site is private land with no public access.