Overview
The Emerald Creek Garnet Area in Coeur d'Alene National Forest is one of the most unique outdoor experiences in Idaho, combining an easy forest trail with the rare opportunity to dig for star garnets, Idaho's official state gem and one of the rarest gemstones in the world. The 3.0-mile out-and-back trail leads to the garnet-bearing creek deposit where visitors can sift creek sediment for their own gems.
Star garnets display a four-pointed asterism (star effect) when polished and are found in significant quantities in only two locations worldwide: this site in Idaho and a deposit in India. The USFS manages this site specifically to allow public recreational mineral collecting.
The Route
The trail from the parking area follows Emerald Creek downstream through mixed forest to the garnet collecting area. The route gains 400 feet and is well-maintained with interpretive signage explaining the geology of the garnet deposit. The collecting area is a supervised dig zone managed by the USFS.
When to Visit
May through September. The collecting area is open seasonally; verify current dates and hours with the Coeur d'Alene Ranger District before visiting. Spring visits see the creek running full; summer and fall are the most comfortable for digging.
Practical Details
A fee applies for garnet digging as of 2026; verify current rates with the ranger district. Trail access to the area is free. Vault toilet at the parking area. No cell service at the site. The checking conditions resource can help confirm seasonal access.
Getting There
From St. Maries, Idaho, drive north on Highway 3 approximately 22 miles. Turn east onto Forest Road 447 toward Clarkia and follow signs to the Emerald Creek Garnet Area. A passenger vehicle can manage the road in good conditions.
Leave No Trace
This trail receives enough use that following Leave No Trace principles is important for preserving the experience for future visitors. Stay on the marked trail to prevent erosion. Pack out all waste. Avoid camping within 200 feet of water sources or the trail. Use existing fire rings only where campfires are permitted, and check current fire restrictions at checking conditions before you go before any visit. The trail and surrounding terrain remain in good condition because previous visitors have respected these norms.
Safety Considerations
The easy-moderate rating reflects the trail's general character under typical conditions. Weather, seasonal snow, and trail conditions can change the experience significantly. Carry the 10 Essentials on any full-day outing. Inform someone of your plans and expected return time before heading out, particularly on longer or more remote trails. Cell service varies throughout Coeur d'Alene National Forest and may be unreliable in canyon bottoms or remote terrain.