Llewellyn Johns Recreation Area
South Dakota

Llewellyn Johns Recreation Area

Available Activities
  • Camping
  • Fishing
  • Boating

๐Ÿ†๐Ÿ†๐Ÿ† Lake Francis Case โ€” Recreation area on Lake Francis Case โ€” 102-mile reservoir on the Missouri River

Llewellyn Johns Recreation Area sits on Lake Francis Case โ€” a 102-mile-long reservoir on the Missouri River created by Fort Randall Dam (completed 1956). Lake Francis Case is the third-largest Missouri River reservoir, offering walleye, smallmouth bass, and northern pike fishing. Fort Randall Dam itself is historically significant โ€” remnants of the original Fort Randall (1856) are visible nearby. The fort was one of the most important military posts on the frontier, and Sitting Bull was held prisoner here after his surrender in 1881.

Visitor Information

DetailInformation
LocationGregory County, SD
Entry FeeSD Park Entrance License required
LakeFrancis Case โ€” 102 miles!
HistorySitting Bull imprisoned at Ft Randall!

About Llewellyn Johns

Llewellyn Johns Recreation Area in Campbell County provides Missouri River recreation on Lake Oahe in northern South Dakota โ€” near the North Dakota border. The area sits along one of the most remote stretches of the Missouri River corridor, where the prairie is vast and the population sparse.

Things to Do

Fishing for walleye and northern pike on Lake Oahe, camping, boating, and experiencing the wide-open northern Missouri River prairie.

About Llewellyn Johns

Llewellyn Johns Recreation Area in Day County provides lake recreation in the Coteau des Prairies โ€” the “highland of the prairies” โ€” a glacial plateau in northeastern South Dakota dotted with hundreds of prairie potholes and kettle lakes. This region is one of North America’s most important waterfowl breeding areas, producing millions of ducks and geese annually for the Central and Mississippi Flyways.

Things to Do

Fishing, camping, birdwatching (duck and goose breeding habitat), boating, swimming, and exploring the prairie pothole region โ€” North America’s “duck factory.”

๐ŸŽฃ Visit Llewellyn Johns Recreation Area

102-mile reservoir โ€” where Sitting Bull was held prisoner.

๐Ÿ“ SD GFP

Sarah Mitchell

About the Author

Outdoor Editor & Trail Expert

Sarah Mitchell is an outdoor writer and trail researcher with over 8 years of experience exploring state parks across America. As the lead editor at AmericasStateParks.org, she has personally visited more than 200 parks in 42 states, logging thousands of trail miles and hundreds of campground nights. Sarah specializes in detailed park guides, accessibility information, and family-friendly outdoor planning. Her work focuses on helping first-time visitors feel confident and well-prepared for their state park adventures.

200+ state parks visited across 42 states | 8+ years of outdoor writing

Last updated: May 10, 2026

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