Where to Find Geodes in Idaho | Top Locations

how to tell if a rock is a geode

Idaho is known as the Gem State of the US because of its wide variety of rocks and minerals found in the area, including geodes. Today, we will explore some of the top locations to find geodes in Idaho.

The state of Idaho is known for its stunning landscapes and diverse geological formations and is a treasure trove for rockhounds and geology enthusiasts. One of the most sought-after geological wonders in the state is the geode, a fascinating rock cavity filled with crystals.

Geodes are extremely popular among rockhounds and Idaho is one of the best geode-hunting states in the USA. These ball-sized rocks contain different minerals inside such as amethyst, quartz, and chalcedony.

While geodes are abundant in Idaho, you won’t find them lying around everywhere. Here are some of the best spots to visit if you are looking for hunting geodes in Idaho.

How We Picked the Best Spots for Finding Geodes in Idaho

When it comes to choosing the best spots for mining geodes in Idaho, we had to consider a lot of things such as:

  • Understanding of our team about the area.
  • Recommendations from the local mining groups.
  • Accessibility to the mining area.
  • Safety and potential hazards.
  • Private and public locations.

Also, look at our best spots with geodes in Maine and the best spots to find geodes in Missouri

Where to Find Geodes in Idaho

If you’re eager to embark on a geode-hunting adventure in Idaho, here are six promising locations where you can uncover these mesmerizing formations.

  • Big Lost River
  • Pole Creek
  • Area North of the Nevada border
  • Antelope Creek
  • Blaine County
  • Salmon Falls Creek

1. Big Lost River

Big Lost River

The Big Lost River region is nestled in the scenic landscapes of central Idaho. It is a heaven for rockhunters who are looking for geodes. The river, which meanders through the vast wilderness, has carved out pockets of mineral-rich deposits over centuries.

If you plan to visit Big Lost River, head towards Mackay, a quaint town serving as a gateway to this geological wonderland. The riverbanks around the area are known to have high-quality agate-filled geodes.

Agates, with their vibrant colors and unique banding patterns, add an extra layer of allure to the geodes found in this region.

You will also find guided trips and tours organized by local rockhounding clubs.

2. Pole Creek

Pole Creek

Pole Creek is another ideal location for geode hunting in Idaho that combines adventure with a scenic backdrop. Situated in the southeastern part of the state, this area is known for its rugged terrain and abundance of geological wonders.

Exploring Pole Creek for geodes may require a bit of off-road exploration, so be prepared. keep an eye out for exposed rock formations and outcrops where geodes may be hiding.

The rocky hills and canyons provide a promising environment for discovering these natural treasures. The area is famous for its beautiful amethyst geodes. 

Make sure to check the weather conditions before embarking on your adventure, as this region can experience extreme temperatures.

3. Area North of the Nevada Border

Nevada Border Idaho

Venturing into the northern reaches of Idaho, near the Nevada border, promises a geode-hunting experience like no other. This vast and relatively untouched area is known for its diverse geological formations, including the coveted geodes.

Keep an eye on the exposed rock formations as you may find geodes lurking beneath the surface.

Given the remoteness of the area, it’s recommended to plan your trip carefully, ensuring you have adequate supplies, navigation tools, and communication devices.

4. Antelope Creek

Antelope Creek

Antelope Creek is another great spot for hunting geodes in Idaho. The creek, meandering through the rugged terrain, has carved out pockets in the rocks where geodes are often found.

The rocks in the area are a part of the Chalk Hills Formation, which is millions of years old. These rocks are filled with geodes, quartz, calcite, and other specimens.

The first place you should visit in the creek is the spot known as the “Geode Beds”. It is just 15 miles south of Spencer, a small town.

Also, make sure to explore the creek bed and its surroundings. Look for signs of weathered rocks or exposed formations, as these are prime locations for geodes.

5. Blaine County

Blaine County

Situated in the heart of Idaho, Blaine County is not only known for its stunning landscapes but also for being a promising destination for geode enthusiasts.

The region is home to the majestic Sawtooth Mountains and offers a diverse geological canvas for those eager to uncover nature’s hidden treasures.

Exploring the riverbeds and rocky outcrops in Blaine County can yield remarkable findings. Just keep an eye on the unique geological features, and don’t hesitate to explore less-traveled paths to increase your chances of making a fascinating discovery.

Make sure to check out the Galena Area, and Sun Valley. You can also follow the Big Wood Creek and look for exposed rocks around it.

6. Salmon Falls Creek

Salmon Falls Creek

Salmon Falls Creek is another great place for geode enthusiasts to visit. It is located in the southern part of Idaho in Twin Falls County, and the area is characterized by its arid landscapes, deep canyons, and exposed rock formations, creating an ideal environment for geode formation.

Salmon Falls Creek is renowned for its agate-filled geodes, which can be found nestled within the rocks along the creek banks. Make sure to explore the creek’s edges and adjacent hillside.

Salmon River tributaries are also famous for their gold panning areas.

Necessary Tools for Mining Geodes in Idaho

Before hunting for geodes in Idaho,  make sure you have the required set of professional tools and equipment. Here are a few things to keep in mind.

  1. Shovels and Trowels: For digging into softer soil, you need a sturdy shovel or a trowel. It also helps clear away the debris on the surface.
  2. Buckets: As you uncover gems, you need buckets to place them. Make sure you have durable buckets for the job to make sure your gems remain undamaged.
  3. Picks and hammers: To split rocks, and extract gems, you need a pick with one pointed end, and the other flat that serves as a hammer.
  4. Magnifying glass: For a closer inspection of your specimen, you need a magnifying glass to reveal details that are not visible to the naked eye.
  5. Zip-lock bags: As you collect gems, you need clear plastic containers or bags to store them. It also allows you to see the gems without having to open the bag.
  6. First aid kit: Mining is a risky venture, so make sure to keep a first aid kit with you at all times so you can address accidents or injuries promptly.


Idaho’s diverse landscapes provide a rich tapestry for geode hunting. Whether you decide to navigate the banks of the Big Lost River or the rigged terrains of Pole Creek, the state has a lot to offer.

As you embark on your journey to find geodes in Idaho, just make sure to adhere to local regulations, and prioritize safety. You can contact local rockhounding clubs in Idaho if you wish to join a trip or get more information on these areas.

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