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This mud-stone layer underlies Long Harbour, continuing up the valley to Dunbabin Park. Being soft and easily eroded, it is usually covered by water or sediments. This photo was taken from Ontario Place boat ramp.

This mud-stone and fine-grained sandstone is the crumbly rock found at most the public swimming beaches around St Mary Lake.  It is the underlying formation of Bullock Lake, Bullock Creek and Duck Creek.  The photo was taken on North End Rd. at the North End of St. Mary Lake.

This is a soft layer composed of sandstone and mud-stone.  It is typically covered by water or sediments. The Cedar District Formation underlays downtown Ganges, Vesuvius Beach and Madrona Bay.  It also forms the south shore of Ganges Harbour.  The photo was taken at Vesuvius Beach.

This mud-stone, silt-stone and fine-grained sandstone can be seen at Baker Beach.  It is the underlying formation of Booth Canal, Salt Spring Marina and Beddis Beach. The photo was taken at Baker Beach.

The Haslam Formation underlays an area running from Cushion Creek up to Cushion Lake and the Cranberry Valley  through to Bader's Beach.   It also sits beneath the sediments of the Fulford Valley.  It is composed of mud-stone, silt-stone and shale.  The photo was taken on the shoreline, 1 km south of Beddis Beach

This is probably the most widespread sedimentary rock on Salt Spring Island. This sandstone and conglomerate can be found on Scott Point, Nose Point, Eagle Ridge, Trincomali Heights, Channel Ridge and parts of Sunset Drive. The photo was taken at Welbury Bay Park, near the Long Harbour ferry terminal.

Sandstone of the De Courcy Formation can be seen at Southey Point and along Long Harbour Road between Upper Ganges and Quebec.  It is the dominant rock type from West Eagle Drive to Southey Point.  The photo was taken at Southey Point beach access.

The Protection Formation is commonly seen on Salt Spring as its sandstone makes up Walker Hook, Grace Point, the Chain Islands and the points on both sides of Churchill Beach.  It can also be seen off Quarry Drive and the points on both left end of Vesvius Beach and left end of Beddis Beach. The photo was taken at Walker Hook.

The ridge that runs from Mt Erskine to Mt Belcher is made of sandstone and conglomerate from this formation.  The photo below shows the sandstone component in Booth Bay and conglomerate from Mt Erskine. 

The oldest layer of the Nanaimo Group, it is composed of sandstone and conglomerate.  This formation is visible at Beaver Point, Mt Maxwell and Russel Island.  Large conglomerate boulders from the top of Mt Maxwell can be found at Burgoyne Bay.  The photo shows sandstone at Russel with conglomerate from Maxwell (inset).