Astronomy Conference

The 2021 Hidden Hollow Astronomy Conference will be held October 7-10, 2021!

2021 Information below!

2021 Mail In Registration (pdf)

2021 Speaker Schedule (pdf)

Nearby Hotels and Restaurants (pdf)

Map for Exiting I-71 (pdf)

The information below is from our 2020 event. Similar information will be posted for the 2021 event, stay tuned!

Overview Flyer 2020 (pdf)

Photo and Sketch Competition Flyer 2020 (pdf)

Raffle Prize List (stay tuned)

Vendors and Sponsors

Dave Holden – Sky Stones Meteorites (

New for 2021, Mad Love Food / Brad Macbeth will be providing delicious meals available for purchase from their food truck. They serve breakfast, a new option this year!


Long-time astronomy conference fans know the legend of Hidden Hollow as one of the friendliest and most comfortable conferences around. We’re nestled deep in the woods of Hidden Hollow resident camp in northeast Ohio near the town of Mansfield. Each year we provide some of the finest guest speakers available, and they join in the fun!

We provide cabins, bunkhouses, and showers for your comfort. We also have primitive/boondocking/dry camping sites for tent and RV camping, modern rest rooms and a licensed food service vendor available for lunch and dinner on Friday and breakfast, lunch and dinner on Saturday.

If it rains, it’s no problem. We have indoor facilities and all activities go on. There are warm areas where you can gather to converse, places to watch movies, play cards or just hang out. The observing field is well-drained and groomed with plenty of “space” to go around.

One of the most appealing parts about Hidden Hollow is the location itself. Even if you aren’t interested in staying up all night observing, you’ll fully appreciate the fine scenery of the camp itself. During the Fall season, Ohio offers some of the most spectacular foliage in the United States, and the pristine, quiet and peaceful surroundings of Hidden Hollow are an ideal place to relax and have an enjoyable weekend. There are plenty of trails to walk in the woods and nearby attractions, restaurants, hotels and shopping. Children and families are always welcome here!

Thanks to wide open spaces and peaceful seclusion, you’ll have a wonderful time at the Hidden Hollow Astronomy Conference. Our guests have voted us #1 as one of the most beautiful astronomical retreats in the country. During your weekend stay, you’ll be treated like family as you enjoy our workshops, contests, programs, fantastic prizes and observing. We welcome visitors of all ages, and you’ll find that no matter where you roam… There’s no place like our home in Hidden Hollow!

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