Where to Find Chalcedony in Nevada

Nevada has 11 mapped collecting spots that report chalcedony, spread across 7 counties. The largest share sits in Humboldt County County with 3 spots. 11 of the spots are on land mapped as publicly accessible.

Spot list checked against source data on April 1, 2026.

Standout chalcedony spots in Nevada

Hand-picked from the full list below, with the reason each one earns a trip.

Virgin Valley
Humboldt County County
Virgin Valley is the United States' classic black-opal district, with USGS and Mindat both placing the opal field near the Oregon line in the Sheldon refuge country. Its strongest geologic feature is opal replacing mid-Miocene wood, including petrified wood and rare plant material, although most precious-opal ground is claimed and any collecting has to respect mining and refuge restrictions.

Best counties for chalcedony in Nevada

Ranked by the number of mapped chalcedony spots. County links open the full rockhounding page for that county.

Every chalcedony spot we track in Nevada

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Lahontan ReservoirKaren Road	Churchill County	Agate Chalcedony Jasper Petrified Wood	39.4476, -119.0493	Public
HendersonMcCullough Hills Trail	Clark County	Chalcedony Jasper Onyx	35.9740, -115.0574	Public
Valley of Fire State ParkBitter Springs Trail	Clark County	Wonderstone Chalcedony	36.3981, -114.6937	Public
Montezuma Peak	Esmeralda County	Chalcedony Chert Jasper Quartz Obsidian Opalized Wood	37.6626, -117.3611	Public
Veterans Memorial HighwayVeterans Memorial Highway	Esmeralda County	Agate Petrified Wood Chalcedony	38.0251, -117.7848	Public
Agate Point	Humboldt County	Agate Chalcedony Chert Flint Jasper	41.7504, -118.3357	Public
Golconda (petrified area)Eden Valley Road	Humboldt County	Chalcedony Petrified Wood	40.9787, -117.4834	Public
Virgin Valley	Humboldt County	Agate Chalcedony Chert Flint Jasper Opal Silicified Lignite Opalized Wood +1 more	41.8302, -119.0002	Public
Lander CountyBattle Mountain Road	Lander County	Chalcedony Jasper Opal Opalite	39.8858, -117.1130	Public
PanacaUvada Road	Lincoln County	Chalcedony Chert Flint	37.7605, -114.3674	Public
Walker Lake	Mineral County	Agate Chalcedony Fossils Petrified Wood Turquoise	38.7849, -118.7425	Public

Before you go

Read the chalcedony identification guide so you know what a keeper looks like in the field: Chalcedony in the encyclopedia.

Chalcedony in Nevada FAQ

Where can you find chalcedony in Nevada?+

The mapped spots concentrate in Humboldt County County, Clark County County, and Esmeralda County County. Every spot on this page appears on the map above with coordinates and access notes.

How many chalcedony spots are mapped in Nevada?+

11 spots across 7 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.

Is it legal to collect chalcedony in Nevada?+

Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 11 of the 11 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find chalcedony

More minerals to hunt in Nevada

Hunt chalcedony in Nevada with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.