Where to Find Agates near Alamosa, CO
14 of the mapped rockhounding spots within 150 miles of Alamosa report agate. The closest is Del Norte Thunder Egg Beds, about 38 miles out (47 min drive).
Agates are banded chalcedony nodules that survive long after their volcanic host rock rots away, which is why they concentrate in gravel bars, beaches, and glacial deposits far from where they formed.
Every agate spot within 150 miles of Alamosa
Best spotDel Norte Thunder Egg BedsSaguache County, Colorado · 38 mi awayPublic access · Plume Agate, Moss Agate, Chalcedony +2
Wolf Creek Stream BedMineral County, Colorado · 52 mi awayPublic access · Amethyst Geode, Agate, Chalcedony +2
Willow Creek (permission required)Mineral County, Colorado · 64 mi awayPermission required · Amethyst, Chalcedony, Sphalerite +2- Last Chance MineMineral County, Colorado · 65 mi awayFee dig · Amethyst, Agate, Chalcedony +7
- Mexican GulchColfax County, New Mexico · 76 mi awayPermission required · Agate, Apatite
- Ghost RanchRio Arriba County, New Mexico · 87 mi awayPublic access · Agate
- Abiquiu LakeRio Arriba County, New Mexico · 91 mi awayPermission required · Agate
- Pedernal ParkRio Arriba County, New Mexico · 95 mi awayPublic access · Agate, Chalcedony, Chert +1
- YoungsvilleRio Arriba County, New Mexico · 97 mi awayPublic access · Agate
- Austin BluffsEl Paso County, Colorado · 115 mi awayPublic access · Agate, Carnelian, Chalcedony +1
- Nacimiento MountainsSandoval County, New Mexico · 116 mi awayPublic access · Agate, Azurite, Chalcedony +2
- Santa Fe National ForestSanta Fe County, New Mexico · 124 mi awayPublic access · Agate, Apache Tear, Jasper +1
- Turquoise Hill and surrounding areaSanta Fe County, New Mexico · 136 mi awayPublic access · Agate, Chalcedony, Chert +1
- Best spotMount ChalchihuitlSanta Fe County, New Mexico · 139 mi awayPublic access · Agate, Chalcedony, Petrified Wood +1
Types of agates reported near Alamosa
Counts reflect how many spots in this radius mention each variety.
- Agate13
- Moss Agate1
- Plume Agate1
Agates near Alamosa FAQ
Where can I find agates near Alamosa?+
14 mapped spots within about 150 miles of Alamosa report agate. The closest is Del Norte Thunder Egg Beds in Saguache County, roughly 38 miles away (47 min drive). The full list with coordinates is on this page.
Can I collect agates on public land near Alamosa?+
10 of the 14 spots here sit on land mapped as publicly accessible, and 1 is a fee-dig site where you pay for access and keep your finds. Casual hand collecting of common rocks and minerals is allowed on most BLM and Forest Service land with limits set by the local field office; national parks and most state parks are closed to collecting. Confirm current rules with the managing agency before a trip.
What is the fastest way to spot an agate in a gravel bed?+
Look for waxy luster and translucence rather than color. Wet the stone or look right after rain: agate glows softly at thin edges when backlit, while jasper and chert stay opaque. Banding clinches it but is often hidden until the stone is cracked or tumbled.
How far from Alamosa do I need to drive?+
The nearest agate spot is about 38 miles out, and the farthest on this list is 139 miles. Most fall inside a normal weekend day-trip radius.
Keep exploring from Alamosa
Where to Find Agates near other cities
Hunt agates around Alamosa with the map in your pocket
RockHoundR shows these spots on an offline map with public land overlays, geology layers, weather, and a log for your finds.
