Dugway Geode Beds

No. The beds are on Bureau of Land Management public land, and casual noncommercial collecting of rocks, minerals and semiprecious gemstones is allowed without a permit at reasonable personal-use amounts. Collecting for resale is commercial use and needs separate authorization from the Fillmore Field Office.

In dry weather the roughly 50 miles of graded Pony Express Road is passable in a passenger car, but the final 2 miles are unimproved and sandy, so high clearance is strongly preferred. After rain or snowmelt the clay turns slick and a two-wheel-drive car can easily get stuck hours from help. Carry a full-size spare and extra fuel.

Most are dark gray spheres 2 to 4 inches across on the outside. Inside, the cavity linings run clear rock crystal, smoky, pale purple amethyst or pink rose quartz, often over a chalcedony shell. Many nodules are solid rather than hollow, so expect to open a number of them before finding a good pocket.

Hand digging is allowed and is how most collectors work the soft beds. The Bureau of Land Management specifically prohibits tunneling because the unconsolidated material can collapse without warning. Use a shovel and screen, keep pit walls sloped rather than undercut, and fill your holes before you leave.

Spring and fall. April through June and September through October give workable temperatures and firm roads. Midsummer regularly exceeds 100F with no shade and no water anywhere on site, and winter storms make the clay road surface impassable.

Two and a half to three hours each way from Salt Lake City, and most of that is unpaved. The route runs I-80 west to Highway 36, then roughly 50 miles of graded Pony Express Road, then about 2 miles of unimproved track. Treat the driving as the main commitment of the day.

A shovel, a garden mattock or pick, a quarter-inch screen, five-gallon buckets, safety glasses and gloves. Because the geodes sit in soft lakebed sediment rather than hard rock, a screen does more work than a sledge. Bring newspaper to wrap keepers for the drive out.

No, and this catches people out. A fair share come out solid chalcedony with no cavity at all. Plan on opening a number of nodules to find good crystal-lined pockets, which is why most collectors take a bucket home to saw rather than cracking everything in the field.

Dispersed camping is permitted on the surrounding BLM land, and Simpson Springs Campground on the Pony Express Road is the nearest developed option. There is no water anywhere out there, so carry everything, and camp on already-disturbed ground rather than crushing new desert crust.

Topaz Mountain and the Antelope Springs trilobite beds are both BLM rockhound areas in the same West Desert region, and Simpson Springs preserves one of the better-documented Pony Express station sites along the route in. Together they make a two or three day circuit.

Trip reports mostly say yes, with the consistent caveat that the driving is the hard part rather than the digging. People who enjoy the trip describe treating it as a full day or an overnight with Topaz Mountain, arriving prepared for a facility-free desert, and accepting that a share of the nodules will be solid. The reports that read as disappointed usually involve a low car, a wet clay road, or an attempt to squeeze it into an afternoon.

The advice that circulates is to saw rather than smash anything you care about. A diamond slab saw gives a clean face that shows the crystal lining properly, while a hammer tends to shatter the thin-walled ones. For field testing, collectors describe tapping a nodule and listening for the hollow ring, then bagging the promising ones and leaving the sawing for home. Pipe cutters and soil-pipe chain cutters also come up as a cleaner alternative to a hammer.

The Dugway Geode Beds on BLM land along the historic Pony Express Road corridor are Utah’s best-known free public geode locality. See this listing and our Utah geode beds region hub for access and desert safety notes.

Casual noncommercial collecting on the Dugway BLM beds is generally free under personal-use rules, but tunneling is prohibited and you must self-support with water, fuel, and offline maps. Confirm current Fillmore Field Office guidance before digging.