Pompey's Pillar

Pompey's Pillar (HM167Q)

Location: Worden, MT 59088 Yellowstone County
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Country: United States of America
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N 45° 59.231', W 108° 0.298'

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Called Iishiia Anaache or "Place Where the Mountain Lion Dwells" by the Apsaalooka (Crow) people, Pompey's Pillar was a well-known landmark to the Plains Indians. It was here, at a strategic natural crossing of the Yellowstone, or Elk River as it was known to the Apsaalooka, that the Indian people met to trade and exchange information. They painted pictographs and etched petroglyphs onto the sheer cliffs of the feature. Apsaalooka legend reports that Pompey's Pillar was once attached to the sandstone bluffs on the north side of the river. At one point, however, the rock detached itself from the cliffs and rolled across the river to its present site.

Pompey's Pillar was also a significant landmark for Euro-American explorers, fur trappers, soldiers and immigrants. It was discovered by Canadian North West Company employee Francois Larocque in 1805. A little less than a year later, on July 25, 1806, it was visited by a 12 man detachment under the command of William Clark that included Sacajawea and her infant son. Clark carved his name and the date on the rock and named it in honor of Sacajawea's son. He was just one of hundreds of individuals who for generations have left their marks on the rock.
HM NumberHM167Q
Series This marker is part of the Lewis & Clark Expedition series, and the National Historic Landmarks series.
Marker ConditionNo reports yet
Date Added Tuesday, September 30th, 2014 at 7:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)12T E 731962 N 5096985
Decimal Degrees45.98718333, -108.00496667
Degrees and Decimal MinutesN 45° 59.231', W 108° 0.298'
Degrees, Minutes and Seconds45° 59' 13.86" N, 108° 0' 17.88" W
Driving DirectionsGoogle Maps
Area Code(s)406
Closest Postal AddressAt or near 3040 Old Highway 312, Worden MT 59088, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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