The Flatbed property is an underground coal prospect located along Calamagrostis Creek, a tributary of Flatbed Creek and approximately 25 kilometres south of Tumbler Ridge.
The region is underlain by an assemblage of sedimentary rocks consisting mainly of continental margin and shelf facies rocks. This assemblage was deposited on and to the west of the Ancestral North American craton. These sedimentary rocks, for the most part typical miogeoclinal facies, range in age from Hadrynian to Upper Cretaceous. Structurally these rocks are part of the Foreland Thrust and Fold Belt of the North American Cordillera.
The coal measures of the region occur mainly in Lower Cretaceous sediments deposited unconformably on older miogeoclinal strata. These sediments were subjected to fold and thrust tectonics which also affected the older rocks.
The Flatbed coal occurrence is located east of the Quintette (Babcock) mine (MINFILE 093I 011) and targets the same Gates Formation coking coal seams mined there. Locally, at least 8 coal seems have been identified in the Gates Formation and in ascending order are referred to as the K, J, G, F2, F1, E, D and B seams. The coal seams vary from a minimum true thickness of 1.19 metres in seam E to a maximum true thickness of 5.30 metres in seam J. The coal seams rank from low volatile bituminous to medium volatile bituminous coal.
In 2017, Colonial Coal completed five HQ core drill holes, totalling 2831.84 metres, and detailed geological mapping on the Gordon Creek area. The property comprises seven coal licenses that cover an area of 9077 hectares and is held by Colonial Coal International Corporation.
In early 2018, Colonial Coal reported a total in-situ underground mineable inferred resource of 298.0 million tonnes of coal using a 1.0 metre minimum seam thickness and a depth of cover limit of 900 metres (Loveday, D. (2018-01-10): Technical Report - Flatbed Coal Project).