The Lookout Hill limestone occurrence is located on the northeastern slope of Lookout Hill, immediately north of Delkluz Lake, just south of the Ingenika River and 24 kilometres southwest of Williston Lake, approximately 105 kilometres north of the community of Germansen Landing.

The area is underlain by carbonate strata belonging to the Cambrian to Ordovician Kechika Group, which overlie sandstones of the Neoproterozoic Ingenika Group. The Kechika Group forms the core of a broad north-plunging syncline that outcrops approximately 3 kilometres south of the Swannell River.

Ingenika Group limestone underlies a 1300 by 760 metre area on Lookout Hill. In 1954, grab sample analysis yielded 52.24 per cent CaO, 1.68 per cent MgO, 2.72 per cent insolubles, 0.80 per cent Al2O3 plus Fe2O3, 42.04 per cent CO2 and 0.88 per cent water for sample 216C and 55.30 per cent CaO, 0.20 per cent MgO, 0.50 per cent insolubles, 0.60 per cent Al2O3 plus Fe2O3, 42.66 per cent CO2 and 0.86 per cent water for sample 221C (Geological Survey of Canada Memoir 274, page 68):

Sample 216C is of fine-grained, thinly bedded grey limestone exposed on the south slope of Lookout Hill, near the shore of Delkluz Lake. Sample 221C is of white, coarse-grained, recrystallized bedded limestone near the summit of Lookout Hill.