What is the deepest lake in Oklahoma?

Of the lakes with a published depth, Broken Bow Lake is the deepest at about 185 ft.

Deepest lakes in Oklahoma: 8 lakes ranked by depth

Which lakes in Oklahoma go deepest? These 8 have a published maximum depth, from Broken Bow Lake at about 185 ft down.

Deepest first

#	Lake	Deepest	Size
1	Broken Bow Lake	about 185 ft	14,000 acres
2	Grand Lake	about 133 ft	46,500 acres
3	Lake Tenkiller	about 132 ft	12,900 acres
4	Lake Eufaula	about 87 ft	102,000 acres
5	Oologah Lake	about 80 ft	29,000 acres
6	Keystone Lake	about 73 ft	23,600 acres
7	Lake Thunderbird	about 58 ft	5,350 acres
8	Robert S. Kerr Reservoir	about 52 ft	43,000 acres

1. Broken Bow Lake

Broken Bow Lake spreads over some 14,000 acres. It lies about 8.5 miles south of Broken Bow. Like most lakes its size in Oklahoma, it should hold largemouth bass, crappie, white bass and catfish. At about 185 ft deep, it stays cooler below the surface well into summer.

Broken Bow Lake today: water temperature, bite times and the 3-D lake bed

2. Grand Lake

Grand Lake spreads over 46,500 acres. It holds largemouth bass, crappie, catfish and white bass. It goes down to about 133 ft. On the 3-D map the bed has three point drop-offs and two sheltered coves: good places to start.

Grand Lake today: water temperature, bite times and the 3-D lake bed

3. Lake Tenkiller

Lake Tenkiller covers some 12,900 acres. Expect largemouth bass, smallmouth bass, striped bass and crappie. The deepest water is around 132 ft.

Lake Tenkiller today: water temperature, bite times and the 3-D lake bed

4. Lake Eufaula

At 102,000 acres, Lake Eufaula is a huge piece of water. Expect largemouth bass, crappie, catfish and white bass. At about 87 ft deep, it stays cooler below the surface well into summer.

Lake Eufaula today: water temperature, bite times and the 3-D lake bed

5. Oologah Lake

Oologah Lake spreads over 29,000 acres of water. You will find it within an easy drive of Tulsa (about 25 miles). The usual Oklahoma mix applies: largemouth bass, crappie, striped bass and catfish. The deepest water is around 80 ft. The lake bed gives you three steep ledges and an upper arm to work. Oologah Lake was formed by an earth-fill dam on the Verdigris River, authorized under the Flood Control Act of 1938.

Oologah Lake today: water temperature, bite times and the 3-D lake bed

6. Keystone Lake

Keystone Lake spreads over some 23,600 acres. It lies about 14 miles east of Tulsa. Keystone Dam holds it on the Arkansas River. It holds largemouth bass, smallmouth bass, striped bass and white bass. The deepest water is around 73 ft. Its bed shows three point drop-offs and two sheltered coves worth a first look. Keystone Lake was formed in 1968 near Tulsa at the confluence of the Arkansas and Cimarron Rivers.

Keystone Lake today: water temperature, bite times and the 3-D lake bed

7. Lake Thunderbird

Lake Thunderbird spreads over 5,350 acres. It lies near Hall Park. Norman Dam holds it on the Little River. The usual Oklahoma mix applies: largemouth bass, crappie, white bass and catfish. It goes down to about 58 ft. Its bed shows three point drop-offs and two sheltered coves worth a first look. Lake Thunderbird, completed in 1965, is the centerpiece of Lake Thunderbird State Park near Norman.

Lake Thunderbird today: water temperature, bite times and the 3-D lake bed

8. Robert S. Kerr Reservoir

Robert S. Kerr Reservoir is a reservoir of 43,000 acres. The lake is within an easy drive of Fort Smith (about 22 miles). Robert S. Kerr Dam holds it on the Arkansas River. The usual Oklahoma mix applies: largemouth bass, crappie, striped bass and catfish. It goes down to about 52 ft. The lake bed gives you three steep ledges and an upper arm to work.

Robert S. Kerr Reservoir today: water temperature, bite times and the 3-D lake bed

Fishing deep water

In summer a deep lake splits into a warm top layer and a cold bottom; fish hold near the line between them, often 20 to 40 ft down. A depth finder, a slow troll or a jig dropped straight down finds them.