Graue Mill and Museum

Graue Mill and Museum Managed by the DuPage Forest Preserves. Only operating waterwheel gristmill in northeast Illinois.
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Thanks to everyone who stopped by Graue Mill & Museum yesterday to learn about dyeing fabrics in the mid‑19th century! O...
05/29/2026

Thanks to everyone who stopped by Graue Mill & Museum yesterday to learn about dyeing fabrics in the mid‑19th century! Our staff used cochineal to dye the stripes of the homespun flag we’re creating for America 250, and the color turned out beautifully.

It took a long and careful process — from preparing the mordant bath to finishing the dye bath — but the results were worth it.

Stay tuned to see how the flag comes together, just in time for America’s 250th birthday! 🎉🇺🇸

A visitor recently asked about the colorful thread display in our General Store exhibit on the third floor — were those ...
05/28/2026

A visitor recently asked about the colorful thread display in our General Store exhibit on the third floor — were those bright hues really available in the 1800s?

They were! Cotton and silk (and the threads spun from them) take dye beautifully. Indigo created rich blues, and cochineal produced vibrant reds that still impress today. By the mid‑1850s, aniline dyes — some of the first synthetic dyes — also appeared and introduced bolder greens and other shades that replaced many earlier, more muted natural dyes.

It’s worth noting that some of those early synthetic dyes were made with arsenic, which made the dyeing process a bit hazardous. For that reason, our thread display is a modern reproduction based on 1850s examples — colorful, accurate, and perfectly safe.

Next time you visit Graue Mill & Museum, take a closer look at the General Store threads and imagine the vivid textiles of the past!

🌾The University of Illinois Extension Master Gardener’s demonstration grain garden is planted and (already!) sprouting, ...
05/27/2026

🌾The University of Illinois Extension Master Gardener’s demonstration grain garden is planted and (already!) sprouting, but it’s missing something... a wattle fence!

Wattle fences are woven from green freshly cut branches of shrubs or trees. We will be using young invasive honeysuckle harvested that morning by volunteers in Fullersburg Woods as fence material.

If you’d like to help us build our wattle fence and want to learn how to build your own, join us at 1:00pm on Friday May 29th at the Graue Mill to help us weave a new fence!

$5 per attendee. Sign-up required. Visit dupageforest.org to register.

Ever wondered what gives our mill its incredible grinding power? It all comes down to the old millstones — and they have...
05/18/2026

Ever wondered what gives our mill its incredible grinding power? It all comes down to the old millstones — and they have quite a story to tell.

The stones we use are made of French buhrstone, a material 19th‑century millers prized above all others. Why? Because this stone, found in pockets of the Marne Valley in France, is tough, durable, and full of tiny natural holes. Those little pores help disperse heat while grinding, protecting the flour from scorching — and producing a smoother, finer grind.

But here’s the really fascinating part: French buhrstone rarely forms in large, solid pieces. That means most millstones, including ours, had to be assembled from multiple square blocks. Look closely at the cracks between the pieces of our top stone and you’ll see white plaster holding everything together. And for extra security? A big cast‑iron band around the edge keeps all those pieces from breaking apart during the hard work of milling.

Fun facts:
• French buhrstone was once so valuable that it was exported worldwide—sometimes costing more than the mills themselves.
• Every millstone’s pattern was hand‑carved, and the design could completely change the quality of the flour.
• A full set of millstones could weigh more than a small car!

Curious to see these historic stones up close? Stop by the mill and discover how technology, craftsmanship, and history come together in every turn of the wheel! See a demonstration in person, Friday-Sunday at 2pm.

Ready for a new adventure at Graue Mill?Have you tried our newest Goosechase experience yet — the Graue Mill Artifact Hu...
05/13/2026

Ready for a new adventure at Graue Mill?

Have you tried our newest Goosechase experience yet — the Graue Mill Artifact Hunt 2026?

This interactive scavenger hunt takes you on a journey through the mill as you search for unique artifacts, big and small. With so many fascinating pieces of history tucked into every corner, this is your chance to take a deep dive and discover details you may have never noticed before!

And the fun doesn’t stop there: new artifacts are added every month, so you can return again and again for a fresh challenge. Perfect for families, history lovers, or anyone who enjoys a little friendly exploration.

What’s Goosechase?
• Goosechase is a free app that lets you participate in real‑world scavenger hunts.
• Once you join our Graue Mill game, you’ll see a list of “missions” — tasks like finding specific artifacts, answering questions, or snapping photos.
• Complete missions to earn points and work your way up the leaderboard!

It’s simple, fun, and a great way to experience the mill from a whole new perspective.

Download the Goosechase app, search for the Graue Mill Artifact Hunt (join code QTW689), and start exploring today! Bring a friend, bring your family, and see how many artifacts you can discover.

Have you spotted the mysterious egg hiding in one of our second‑floor exhibits? It’s actually a leftover from a previous...
05/12/2026

Have you spotted the mysterious egg hiding in one of our second‑floor exhibits? It’s actually a leftover from a previous display… but now it’s turned into a fun little challenge for our sharp‑eyed visitors!

Take a stroll through the second floor and see if you can find the egg. Our photo is a close‑up so we don’t give anything away — the thrill of the hunt is half the fun!

Let us know if you discover it!

Join us Saturday May 16th from 11am-noon for another storybook and activity.  We’ll be reading “You Wouldn’t Want to Liv...
05/09/2026

Join us Saturday May 16th from 11am-noon for another storybook and activity. We’ll be reading “You Wouldn’t Want to Live Without Vegetables” by Alex Woolf. Then we’ll be rolling up our sleeves and planting some seeds into peat pots for kids to take home. We’ll be planting in potting soil, so wear old clothes you don’t mind getting dirty. Bring a small box to help carry your newly planted seeds home!
Parent with child program; gown-ups get to stay and help.

$5 per child ; Please register in advance at: https://www.dupageforest.org/things-to-do/calendar-of-events?trumbaEmbed=view%3Devent%26eventid%3D197583846

02/27/2026

We had a fantastic Teacher Institute Day Workshop at Fullersburg Woods Nature Education Center 🌳 and Graue Mill and Museum 🏛️! DuPage County educators spent the day diving into local history, science, and nature through hands-on learning and exploration 🔍🌿📚.

A huge thank you to all the teachers who joined us—your curiosity and enthusiasm help bring these stories and lessons to life for students across the county! 🍎✨

Address

3800 York Road
Oak Brook, IL
60523

Opening Hours

Wednesday 10am - 4pm
Thursday 10am - 4pm
Friday 10am - 4pm
Saturday 10am - 4pm
Sunday 10am - 4pm

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