There are at least 73 named pillars in Montana:
Alcatraz Rock, Fallon County, Montana, , el. Alp Rock, Park County, Montana, , el. Baker Monument, Fergus County, Montana, , el. Barking Dog, Lewis and Clark County, Montana, , el. Bear Tooth, Liberty County, Montana, , el. Big Rock, Glacier County, Montana, , el. Black Rock, Chouteau County, Montana, , el. Castle Rock, Powell County, Montana, , el. Castle Rock, Pondera County, Montana, , el. Castle Rock, Park County, Montana, , el. Castle Rock, Carter County, Montana, , el. Castle Rock Spire, Carbon County, Montana, , el. Castle Rocks, Phillips County, Montana, , el. Castle Rocks, Big Horn County, Montana, , el. Chimney Rock, Carter County, Montana, , el. Chimney Rock, Dawson County, Montana, , el. Chimney Rock, Park County, Montana, , el. Chimney Rock, Powder River County, Montana, , el. Chimney Rock, Park County, Montana, , el. Citadel Rock, Chouteau County, Montana, , el. Cleft Rock, Flathead County, Montana, , el. Crow Rock, Garfield County, Montana, , el. Cupids Heart, Gallatin County, Montana, , el. Dog Tooth Rock, Park County, Montana, , el. Dutch Oven, Garfield County, Montana, , el. Eagle Nest Rock, Park County, Montana, , el.
Eagle Rock, McCone County, Montana, , el. Eagle Rock, Chouteau County, Montana, , el. Eagle Rock, Beaverhead County, Montana, , el. Eglise Rock, Madison County, Montana, , el. Elephant Rock, Meagher County, Montana, , el. Goat Rocks, Sanders County, Montana, , el. Goose Rock, Missoula County, Montana, , el. Haystack Butte, Chouteau County, Montana, , el. History Rock, Gallatin County, Montana, , el. Indian Head Rock, Jefferson County, Montana, , el. Indian Head Rock, Cascade County, Montana, coordinates unknown, el. Indian Rock, Fergus County, Montana, , el. Jones Cone, Fergus County, Montana, , el. LaBarge Rock, Chouteau County, Montana, , el. Mil-mil-teh Hill, Meagher County, Montana, , el. Napi Rock, Glacier County, Montana, , el. Needle Butte, Rosebud County, Montana, , el. Peyton Rock, Ravalli County, Montana, , el. Pikes Peak, Valley County, Montana, , el. Pilot Rock, Chouteau County, Montana, , el. Pipe Organ Rock, Beaverhead County, Montana, , el. Point Stupid, Park County, Montana, , el. Point of Rocks, Flathead County, Montana, , el. Pompeys Pillar, Yellowstone County, Montana, , el. Prohibition Rock, Gallatin County, Montana, , el. Proposal Rock, Beaverhead County, Montana, , el. Pulpit Rock, Gallatin County, Montana, , el. Pumpelly Pillar, Glacier County, Montana, , el. Red Rock, Missoula County, Montana, , el. Road Agents Rock, Beaverhead County, Montana, , el. Sand Rocks, Blaine County, Montana, , el. Sentinel Rock, Lewis and Clark County, Montana, , el. Sheep Rock, Gallatin County, Montana, , el. Sheep Rock, Jefferson County, Montana, , el. Ship Rock, Chouteau County, Montana, , el. Signal Rock, Granite County, Montana, , el. Square Butte, Phillips County, , el. Stack Rocks, Carter County, Montana, , el. Stands Alone Woman Peak, Glacier County, Montana, , el. Steamboat Rock, Rosebud County, Montana, , el. Steamboat Rock, Beaverhead County, Montana, , el. Sugarloaf Rock, Fergus County, Montana, , el. The Bear, Park County, Montana, , el. The Castle, Meagher County, Montana, , el. The Chimneys, Phillips County, Montana, , el. The Needles, Meagher County, Montana, , el. The Painted Rock, Lewis and Clark County, Montana, , el.
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