Where to Find Opal in Idaho
Idaho has 6 mapped collecting spots that report opal, spread across 6 counties. 4 of the spots are on land mapped as publicly accessible.
Spot list checked against source data on April 1, 2026.
Every opal spot we track in Idaho
AgathaNez Perce County, IdahoPermission required · Opal, Opalized Wood
EmmettGem County, IdahoPublic access · Blue Agate, Opal- MoscowLatah County, IdahoPublic access · Opal
- Panther CreekLemhi County, IdahoPublic access · Opal
- SettersKootenai County, IdahoPermission required · Opal
- Yellow PineValley County, IdahoPublic access · Opal
Best counties for opal in Idaho
Ranked by the number of mapped opal spots. County links open the full rockhounding page for that county.
- Gem County1 spot
- Kootenai County1 spot
- Latah County1 spot
- Lemhi County1 spot
- Nez Perce County1 spot
- Valley County1 spot
Before you go
Read the opal identification guide so you know what a keeper looks like in the field: Opal in the encyclopedia.
Opal in Idaho FAQ
Where can you find opal in Idaho?+
The mapped spots concentrate in Gem County, Kootenai County, and Latah County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many opal spots are mapped in Idaho?+
6 spots across 6 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 opal in Idaho?+
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. 4 of the 6 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find opal
More minerals to hunt in Idaho
Hunt opal in Idaho 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.
