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Shipping Gift Cards & Groovy Gear NOW | All other items are pickup only

Howdy! Welcome to the Holler Earth.

In a world where plants grow and minerals form beautiful rock formations, two adventurers set forth to discover HOLLER EARTH.

Bringing beauties of the natural world to Central Ohio, visit our new Rock Shop to explore even more magic under one Groovy roof. Discover the wonder for yourself!

Polished gems, rough tumbled rocks, fantastic fossils, and so much more!

Located inside Groovy Plants Ranch

4140 Co Rd 15 Marengo, OH 43334

OPEN DAILY 8:00 am-5:30 pm

FOLLOW ALONG for all the rock hits!

Facebook: @hollerearthrockshop

Instagram: @hollerearthrocks

Tiktok: @hollerearthrocks

Holler Earth is currently in-store shopping only; sign up to be notified about shipping!

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Mine your own gems at the


Purchase your mining packs at the register and then head over to the mine, located behind the Armadilla Villa, to see what you find!

Choose from:

1 - Gem Mix Only

2 - Fossils & Shark Teeth

3 - Arrowheads

4 - Gems & Emeralds

5 - Gems, Amethysts, Fossils, Shark Teeth, Arrowheads

6 - Gems, Emeralds, Amethysts, Crystals, Fossils, Shark Teeth, Arrowheads

Perfect for little explorers and adults alike!

GEM MINE is open everyday 8:00 am-5:30 pm.

Last day of the Season date TBA--as long as it's warm enough to use the sluice will be open.

PLUS you can also order Gem Mining Vouchers--the perfect stocking stuffer. Redeem for future use on a sunny day where you can gem mine together!