Open daily at 9 am! We request everyone wear a mask to protect our staff and other guests. Call with specific questions!
Adventure Package pricing is Available!
  More To Do

One cave. Many Perspectives.

The Longest Year Cover





Buy Online:   Purchase on Amazon Icon

The Longest Year

Indiana Caverns Development
by Gary Roberson
ISBNs:   978-1495104169   978-1495104176

A fascinating 380 day journey of constant and costly struggle, prevailing against all odds to forge Indiana Caverns.

How Indiana Caverns came to be is a fascinating journey that unfolded slowly over many decades. Gary Roberson and his high school caving friend, Terry Crayden, had dreamed of opening part of the vast Binkley Cave system to the public for over 40 years. Finally, after almost giving up on their dream, the development of the caverns came to improbable fruition in one unbelievable year of unrelenting effort. The Longest Year is their story and that of the drive and ingenuity that made America great.

This is the story of how through 380 days of constant struggle; they overcame many seemly insurmountable obstacles with the grit and determination to not allow circumstances to defeat them. Indiana Caverns opened to the public on June 15, 2013, just in time to avoid bankruptcy. One more week and the business would not have survived the first winter.

The Longest Year is a must read for anyone with a passion for adventure or an entrepreneurial spirit. There is always a price to be paid to accomplish anything of lasting significance. You will be inspired and amazed as you follow the team through what, for many of them, was the longest year of their lives. This book is a must read for anyone who dreams of one day of opening their own business.

The Geology of Indiana Caverns Cover





Buy Online:   Purchase on Amazon Icon

The Geology of Indiana Caverns

& The Binkley Cave System
by Gary Roberson
ISBNs:   978-1-4951-0420-6   978-1-4951-0421-3

Retrace a fascinating journey through time for one of the longest caves in America.

The Geology of Indiana Caverns and the Binkley Cave System retraces a fascinating journey through time. Follow the progression from the bottom of a shallow sea millions of years ago to what is presently on of the longest caves in America. The author, Gary Roberson, even attempts to look into what the future may hold for this vast cave system.

Historically, caves have been shrouded in mystery. Only in recent decades have speleologist begun to understand the chemical and geological process that result in the formation of a cave. This book begins to unravel this mystery for Indiana Caverns and the Binkely cave system - one of America’s longest caves.

While a large majority of american caves open to the public are privately operated, up to this point most of the in depth research has taken place in a few large and well-known National Park Service caves. The Geology of Indiana Caverns and the Binkley Cave System is one of the few recently published books on this subject in a private show cave.

Accomplishing something of great significance has its costs.

Gary Roberson

Owner & Developer of Indiana Caverns
Gary's Books Cover
- Gary Roberson

A caver since age 11 and a member of the ISS since 1966, Gary was one of the developers of Squire Boone Caverns and was part-owner and manager of Marengo Cave National Landmark for 28 years.   Read Full Bio

Open Daily:   9am

Tours leave frequently throughout the day. You must arrive before or by 4 pm EDT to be guaranteed a spot on the last tour of the day. The cave temperature is 56 degrees all year. Weather is never a problem.

Closed only on Thanksgiving and Christmas Day.

Get Directions

Indiana Caverns is just outside of Corydon, the first state capital of Indiana. Directly off I-64 at exit 105.

Call:  812-734-1200

Give us a call. We’re ready to help plan your visit.

Or send us a message.

Camping & Lodging in Corydon, IN

This friendly town offers a great choice of restaurants, shopping and a variety of attractions: historic sites, wineries, state parks and other natural attractions. Most are within a 5-10 minute drive from the cavern.

Request a free local visitor guide with discount offers, camping, lodging and more.