More than anything else, Oklahoma is a celebration of the great outdoors.  The only limitations for enjoying Oklahoma are imposed by your imagination! Oklahoma’s 12 distinct ecosystems include landscapes that range from mesas and sand dunes in the southwest to wetlands in the southeast, and mountains, wilderness and prairies in between. There are mountains, streams, forests, lakes and even sandy beaches.  The 51 state parks and numerous wildlife refuges create big opportunities for outdoor recreation. The Southeast region of Oklahoma has seven mountain ranges, 10 state parks and 23 lakes with countless streams and rivers.