Description - This state is neatly divided into four regions by Interstates 35 and 40. Oklahoma City lies at the center of the state, where the above mentioned highways intersect. It is the capital of the state and the largest city. Northeastern Oklahoma contains Tulsa, the second largest city in the state. Geography in the region consists of green rolling hills and tallgrass prairie. The Cimarron and Arkansas Rivers join west of Tulsa to form a large, man-made lake. There are several other large lakes in the region most of which support state parks along their shorelines.
Copyright: National Park Service
Chickasaw National Recreation Area
Southeast Oklahoma contains the highest mountains in the state, although the general elevation of the region is the lowest in the state. The Canadian River flows through the northern portion of southeastern Oklahoma. The river supports Eufaula Lake, which is the one of the largest lakes in the southwestern United States. Fountainhead State Park lies on the banks of Eufaula Lake. Two districts of the Ouachita National Forest lie on the southeastern border with Arkansas. The Red River forms the southern border of the state and Lake Texoma. Chickasaw National Recreation Area lies along Interstate 35 in the south central region of the state.
Southwestern Oklahoma contains the Red River and several small lakes. The geography of the region consists mainly of shortgrass prairie and high plains. This region lies at an elevation close to 4,000 feet and is dotted with unusual sandstone rock formations. The Wichita Mountains National Wildlife Refuge lies within this region and preserves a 60,000 acre plot of natural grasslands.
The Northwestern region of the state is characterized by high elevations and red soil that pervades the region. The Canadian and Cimarron Rivers flow through the region toward the Gulf of Mexico. Black Kettle and Rita Blanca National Grasslands lie in this region and preserve natural parcels of tallgrass prairie. Wildlife refuges and several state parks provide natural settings for a variety of recreation opportunities in the area.
Recreation - Recreation opportunities in Oklahoma focus upon facilities provided by a varied state parks system. Many man-made lakes support facilities for boating, swimming, fishing, camping and picnicking. Rafting, kayaking, hiking, backpacking and mountain biking are popular activities enjoyed on the rivers and in the natural areas of the state.
Climate - This state has a mild climate due to its southern location and low elevations. The western regions of the state are somewhat drier than that of the east. Winter temperatures range from 50 degrees to 25 degrees F. The season extends from December through February and very little snow fall during this period. Spring begins in March, with temperatures between 50 and 70 degrees F. Temperatures rise throughout the season and summer highs begin to peak in July and August. All regions of Oklahoma receive days with temperatures reaching 100 degrees. The southwestern corner of the state usually records the hottest temperatures. by October fall temperatures provide relief from the heat of summer. Temperatures during this season reach into the 60s for highs and dip into the 30s for the lows. The relative humidity has an annual average of 64 percent. The most rainfall occurs during the months of May and June.