Where to Find Petrified Wood near Helena, MT
12 of the mapped rockhounding spots within 150 miles of Helena report petrified wood. The closest is Jefferson River, about 63 miles out (1 hr 19 min drive).
Petrified wood is ancient wood replaced cell by cell with silica. It concentrates where volcanic ash buried forests, and weathered pieces collect as float on desert slopes and in washes.
Every petrified wood spot within 150 miles of Helena
Jefferson RiverMadison County, Montana · 63 mi awayPublic access · Agate, Chalcedony, Jasper +1- VaughnCascade County, Montana · 71 mi awayPublic access · Silicified Wood
- LivingstonPark County, Montana · 92 mi awayPublic access · Agatized Wood
- Mount BlackmoreGallatin County, Montana · 93 mi awayPublic access · Agate, Chalcedony, Hyalite Opal +1
- Frying Pan BasinBeaverhead County, Montana · 96 mi awayPublic access · Corundum, Opalized Wood, Silicified Wood
- Yellowstone RiverPark County, Montana · 97 mi awayPublic access · Agate, Montana Agate, Moss Agate +2
- CarbellaPark County, Montana · 109 mi awayPublic access · Agate, Jasper, Petrified Wood +1
- MinerPark County, Montana · 110 mi awayPublic access · Agate, Chalcedony, Jasper +1
- Yellowstone River - Pelican Fishing AccessSweet Grass County, Montana · 123 mi awayPublic access · Montana Moss Agate, Petrified Wood, Jasper +1
- Yellowstone River - Bratten Fishing AccessSweet Grass County, Montana · 130 mi awayPublic access · Montana Moss Agate, Petrified Wood, Jasper +1
LeesburgLemhi County, Idaho · 137 mi awayCheck locally · Gold, Petrified Wood- Yellowstone River - Holmgren Fishing AccessStillwater County, Montana · 144 mi awayPublic access · Montana Moss Agate, Petrified Wood, Jasper +1
Types of petrified wood reported near Helena
Counts reflect how many spots in this radius mention each variety.
Petrified Wood near Helena FAQ
Where can I find petrified wood near Helena?+
12 mapped spots within about 150 miles of Helena report petrified wood. The closest is Jefferson River in Madison County, roughly 63 miles away (1 hr 19 min drive). The full list with coordinates is on this page.
Can I collect petrified wood on public land near Helena?+
11 of the 12 spots here sit on land mapped as publicly accessible. Casual hand collecting of common rocks and minerals is allowed on most BLM and Forest Service land with limits set by the local field office; national parks and most state parks are closed to collecting. Confirm current rules with the managing agency before a trip.
How can I tell petrified wood from plain rock?+
Look for wood structure: parallel grain lines, growth rings on cut ends, and bark texture on the outside. Petrified palm shows a distinctive rod-and-dot pattern instead of rings. Plain jasper and chert show none of these, even when the color looks woody.
How far from Helena do I need to drive?+
The nearest petrified wood spot is about 63 miles out, and the farthest on this list is 144 miles. Most fall inside a normal weekend day-trip radius.
Keep exploring from Helena
Where to Find Petrified Wood near other cities
Hunt petrified wood around Helena with the map in your pocket
RockHoundR shows these spots on an offline map with public land overlays, geology layers, weather, and a log for your finds.
