Fossil Mountain | Utah

Fossil Mountain, a peak in Utah’s Fish Creek Range within King Top Wilderness Study Area, features layered Ordovician-age sedimentary rock with abundant marine fossils dating back roughly 485–458 million years (upper Pogonip Group). Visitors can explore exposures of limestone, siltstone, sandstone, conglomerate, and shale, scanning the slopes and washes for diverse fossil remains including trilobites, brachiopods, cephalopods, graptolites, echinoderms, and more.  

The moderately rugged hike across wash terrain rewards rockhounds and paleontology enthusiasts with direct access to fossil-rich strata. Sweeping views of surrounding desert ranges accompany interpretive panels that explain the site’s scientific significance and offer guidelines for protecting these fragile resources.

Hours and Seasons

Open year‑round. Conditions can become harsh in summer and winter; spring and fall offer the most comfortable climate for fossil hunting.

Features and Services

• Access and Parking: Turnoff accessed by gravel roads; high-clearance or four-wheel drive recommended.
• Cell Service: Minimal to nonexistent; plan accordingly.
• Toilets & Water: None on-site — carry water and come prepared.
• Pets: Allowed on leash; please leave no trace.
• Camping: Primitive, dispersed camping is permitted in the area. Please check fire restrictions in advance, follow guidance on posted signs, and respect private property.
• Nearby Amenities: Closest services (gas, food, lodging) are in Delta, UT.

Respect and Protect

Collecting reasonable quantities of common invertebrate fossils is allowed – please review Can I collect fossils? for details.

Fossil Mountain is within the King Top Wilderness Study Area. Motorized and mechanical travel is prohibited. Please practice responsible outdoor ethics to ensure that future visitors can appreciate this remarkable site.