Where to Find Agates in New Mexico: 36 Mapped Sites
New Mexico has 36 documented sites where agates have been reported, and the best-known are Mimbres Mountains, Cookes Peak area, and Jornada Valley. Every site is mapped below with GPS coordinates and links to a full report of access and what's been found there. 36 of the 36 sites are on public-access land.
Last updated: — data compiled by the Rockhounding.org Research Team · methodology
Agates Map: New Mexico
All 36 agates sites in New Mexico. Click a pin for the full site report.
Where Agates Are Found in New Mexico
Agates fill gas cavities in old lava flows, then outlast the host rock and concentrate in gravels. Hunt gravel bars, beaches, glacial till, and desert washes rather than solid outcrop.
The richest reported sites in New Mexico: Mimbres Mountains, Cookes Peak area, Jornada Valley, Los Lunas, Nacimiento Mountains.
Local reporting distinguishes Gem Agate (4 sites), Banded Agate (2 sites), Red Agate (1 site), Seam Agate (1 site).
Of the 36 sites, 36 are public access. Check each site report for current land status before you go.
All Agates Sites in New Mexico
- Mimbres Mountains — Public Access
- Cookes Peak area — Public Access
- Jornada Valley — Public Access
- Los Lunas — Public Access
- Nacimiento Mountains — Public Access
- Rio Puerco Valley — Public Access
- Elephant Butte — Public Access
- General Area (Luna County) — Public Access
- Hatch — Public Access
- Luna (agate area) — Public Access
- Mogollon — Public Access
- Mount Chalchihuitl — Public Access
- Mud Springs Mountains — Public Access
- Pedernal Park — Public Access
- Quemado — Public Access
- Santa Fe National Forest — Public Access
- Turquoise Hill and surrounding area — Public Access
- Zuni Mountains — Public Access
- Big Diggins Mine (paid location) — Public Access
- Leggett Peak — Public Access
- Pajarito Mesa — Public Access
- Pyramid Mountains — Public Access
- Rockhound State Park — Public Access
- Big Hatchet Mountains — Public Access
- Fra Cristobal Range — Public Access
- Laguna — Public Access
- Mexican Gulch — Public Access
- Plains of San Agustin — Public Access
- San Francisco River — Public Access
- Union County — Public Access
- Abiquiu Lake — Public Access
- Belen to Los Lunas — Public Access
- Elk Horn Park — Public Access
- Ghost Ranch — Public Access
- Lee Russell & Kerr Canyons — Public Access
- Youngsville — Public Access
How to Identify Agates
Agate is banded chalcedony: a waxy-luster stone, hardness about 7, that breaks with a smooth conchoidal (shell-like) fracture instead of splitting on flat planes. The reliable field test is backlighting — hold a wetted stone to the sun and an agate glows translucent at the edges, usually showing its bands. Jasper looks similar but stays opaque.
Not sure what you found? Try our identification guide →Frequently Asked Questions
Where can I find agates in New Mexico?
New Mexico has 36 mapped sites where agates have been reported. The best-known are Mimbres Mountains, Cookes Peak area, and Jornada Valley. Each listing on the map above includes GPS coordinates, access type, and what has been found there.
How many agates sites are mapped in New Mexico?
We have 36 documented agates sites in New Mexico, compiled from community submissions and published locality records and reviewed by the Rockhounding.org Research Team.
Is it legal to collect agates in New Mexico?
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 agate?
Agate is banded chalcedony: a waxy-luster stone, hardness about 7, that breaks with a smooth conchoidal (shell-like) fracture instead of splitting on flat planes. The reliable field test is backlighting — hold a wetted stone to the sun and an agate glows translucent at the edges, usually showing its bands. Jasper looks similar but stays opaque.
What kinds of agates are found in New Mexico?
Reports from New Mexico distinguish Gem Agate (4 sites), Banded Agate (2 sites), Red Agate (1 site), Seam Agate (1 site), Moss Agate (1 site).
What should I bring to collect agates?
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.