The Ucluelet limestone showing is exposed for 30 metres along the Tofino-Ucluelet Highway, 1.9 kilometres northwest of Ucluelet. The limestone also outcrops for 120 metres along the beach, 300 metres south of the highway exposure.
The showing is associated with brecciated grey chert, dark green basaltic flows, tuffs and ribbon chert of the Jurassic Pacific Rim Complex. All units are extensively faulted. The limestone displays numerous northwest striking, vertical joints spaced 5 to 25 centimetres apart.
The showing is composed of fine-grained, massive limestone containing a few crinoid fragments and numerous coarse-grained calcite veinlets. A chip sample taken at 0.61 metre intervals across 9.14 metres of limestone exposed along the highway, contained 55.13 per cent CaO, 0.33 per cent MgO, 0.60 per cent insolubles, 0.23 per cent R2O3, 0.19 per cent Fe2O3, 0.018 per cent MnO, trace of P2O5, 0.041 per cent sulphur, 43.52 per cent ignition loss and 0.06 per cent water (Minister of Mines Annual Report 1962, page 153, Sample 1).