Where to Find Flint in Missouri: 10 Mapped Sites
Missouri has 10 documented sites where flint have been reported, and the best-known are Old Mines, Saint Charles Quarry, and Dexter. Every site is mapped below with GPS coordinates and links to a full report of access and what's been found there. 10 of the 10 sites are on public-access land.
Last updated: — data compiled by the Rockhounding.org Research Team · methodology
Flint Map: Missouri
All 10 flint sites in Missouri. Click a pin for the full site report.
Where Flint Are Found in Missouri
Flint forms as nodules and beds inside limestone and chalk, then survives into gravels after the host dissolves. Quarry spoil, plowed limestone ground, and creek gravels are the productive spots.
The richest reported sites in Missouri: Old Mines, Saint Charles Quarry, Dexter, Lincoln, Greenfield.
Local reporting distinguishes Chert (9 sites), Mozarkite (2 sites).
Of the 10 sites, 10 are public access. Check each site report for current land status before you go.
All Flint Sites in Missouri
- Old Mines — Public Access
- Saint Charles Quarry — Public Access
- Dexter — Public Access
- Lincoln — Public Access
- Greenfield — Public Access
- Warsaw — Public Access
- Elk River near Bee Bluff — Public Access
- Hermitage — Public Access
- Current River — Public Access
- Doniphan — Public Access
How to Identify Flint
Flint and chert are cryptocrystalline quartz: dense, waxy-looking stone that breaks with sharp-edged conchoidal fractures — the reason it was the toolstone of choice for millennia. Hardness about 7, so it scratches glass, and it throws sparks against hardened steel. Colors run gray, black, tan, and banded combinations.
Not sure what you found? Try our identification guide →Frequently Asked Questions
Where can I find flint in Missouri?
Missouri has 10 mapped sites where flint have been reported. The best-known are Old Mines, Saint Charles Quarry, and Dexter. Each listing on the map above includes GPS coordinates, access type, and what has been found there.
How many flint sites are mapped in Missouri?
We have 10 documented flint sites in Missouri, compiled from community submissions and published locality records and reviewed by the Rockhounding.org Research Team.
Is it legal to collect flint in Missouri?
Casual collecting is generally allowed on BLM and National Forest land for personal, non-commercial use — the standard BLM limit is 25 lbs per day plus one specimen. National parks, monuments, and many state parks prohibit collecting, and private land always requires the owner's permission. Check the site report for each location and verify current land status before you dig.
How do I identify flint?
Flint and chert are cryptocrystalline quartz: dense, waxy-looking stone that breaks with sharp-edged conchoidal fractures — the reason it was the toolstone of choice for millennia. Hardness about 7, so it scratches glass, and it throws sparks against hardened steel. Colors run gray, black, tan, and banded combinations.
What kinds of flint are found in Missouri?
Reports from Missouri distinguish Chert (9 sites), Mozarkite (2 sites).
What should I bring to collect flint?
The basics: a rock hammer, safety glasses, gloves, a bucket or padded bag for specimens, and a GPS app with the coordinates from this page. Add a spray bottle — wetting a stone makes color and banding far easier to judge in the field.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Data: community submissions — reviewed and approved by the Rockhounding.org Research Team. Always verify current land status, regulations, and access before visiting any site.