Protected areas established in 1950

national park in Kenya

national park of Japan

national park of Poland

national park in Chile

national park of Japan

national park in Morocco

quasi-national park around the Lake Biwa in Shiga and Kyoto prefecture, Japan

quasi-national park in Niigata prefecture, Japan

lake in British Columbia, Canada

quasi-national park in Fukuoka, Kumamoto and Oita prefecture, Japan

Balgö is an island and a nature reserve in Kattegat, off Tångaberg in Varberg Municipality, Sweden. Balgö is the largest island in Halland. The nature reserve was established in 1950. Some smaller islands around Balgö are also included in the nature reserve.

national park in Australia

thumb|250px|right|Heiðmörk reserve, Iceland. Heiðmörk () was proclaimed a municipal conservation area of Reykjavík in 1950. It is located southeast of Elliðavatn, Iceland, and is about from central Reykjavík. Its name is derived from its namesake in Norway, Hedmark (both derive from the Old Norse '''' ), an area with deep forests.

state park in Washington State, USA

provincial park on Vancouver Island in British Columbia, Canada

nature preserve in Middletown, Rhode Island, US