It was originally known as Dalton Digby Wildlands Provincial Park, after the two townships it encompassed, before being renamed on October 9, 2002, to commemorate Queen Elizabeth II's Golden Jubilee visit to Ontario.

It fulfilled a promise by the then-Conservative government of Ontario to name a new provincial park in her honour.

The park has a low rolling topography which includes organic soils, flat sandy deposits, wetlands, bare bedrock plain and bare bedrock uplands with shallow soil patches, characterized by numerous rock ridges, including scenic cliffs and gorges, separating dozens of small lakes, rivers and streams.

There are a few islands in the various lakes that escaped the fires, and accordingly remain with deeper soil and much larger trees that stand out boldly in the otherwise low-relief terrain.

The park contains numerous outdoor recreation opportunities including six major canoe routes, the Ganaraska Hiking Trail Wilderness Section, and remote fly-in fishing camps.