are parks or other protected areas managed at the sub-national level within those nations which use "state" as a political subdivision. State parks are typically established by a state to preserve a location on account of its natural beauty, historic interest, or recreational potential. There are state parks under the administration of the government of each U.S. state.
A regional park can be a special park district covering a region crossing several jurisdiction boundaries, or a park system of a single jurisdiction, such as a province, county, or city.
is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservationand to provide special opportunities for study or research. Nature reserves may be designated by government institutions in some countries, or by private landowners, such as charities and research institutions, regardless of nationality. Nature reserves fall into different IUCN categories depending on the level of protection afforded by local laws. Normally it is more strictly protected than a nature park.