St. Francois Mountains

E166982
geologic formation igneous mountain range mountain range

The St. Francois Mountains are an ancient, rugged igneous mountain range in southeastern Missouri, known as one of the oldest exposures of volcanic rock in North America.

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All labels observed (1)

Label Occurrences
St. Francois Mountains canonical 3

Statements (49)

Predicate Object
instanceOf geologic formation ⓘ
igneous mountain range ⓘ
mountain range ⓘ
ageEstimate_years over 1.4 billion ⓘ
contains Bell Mountain ⓘ
Elephant Rocks ⓘ
Hughes Mountain ⓘ
Johnson’s Shut-Ins ⓘ
Pilot Knob ⓘ
Proffit Mountain ⓘ
Taum Sauk Mountain ⓘ
country United States of America ⓘ
surface form: United States
drainage Black River ⓘ
Meramec River valley ⓘ
surface form: Meramec River

St. Francis River ⓘ
elevationOfHighestPoint_ft 1772 ⓘ
elevationOfHighestPoint_m 540 ⓘ
geologicAge Precambrian ⓘ
geologicalNature igneous ⓘ
geologicSignificance exposes core of the Ozark uplift ⓘ
one of the few Precambrian igneous outcrops in the central United States ⓘ
highestPoint Taum Sauk Mountain ⓘ
knownFor ancient exposed igneous rocks ⓘ
being one of the oldest exposures of volcanic rock in North America ⓘ
landformType dissected plateau ⓘ
locatedIn Iron County, Missouri ⓘ
Madison County, Missouri ⓘ
Missouri ⓘ
Reynolds County, Missouri ⓘ
St. Francois County, Missouri ⓘ
southeastern Missouri ⓘ
locatedOn North America ⓘ
surface form: North American continent
namedAfter St. Francis River ⓘ
orogeny Precambrian ⓘ
partOf Ozark Plateau ⓘ
Ozark Plateau ⓘ
surface form: Ozarks
primaryProcesses erosion ⓘ
volcanism ⓘ
protectedAreas Elephant Rocks State Park ⓘ
Johnson’s Shut-Ins State Park ⓘ
Taum Sauk Mountain State Park ⓘ
region Midwestern United States ⓘ
rockType granite ⓘ
rhyolite ⓘ
volcanic rock ⓘ
terrain rugged ⓘ
tourism geological tourism ⓘ
hiking ⓘ
rock climbing ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ozarks region (partly) → hasPart → St. Francois Mountains ⓘ
subject surface form: Ozarks
Ozark Plateau → hasPart → St. Francois Mountains ⓘ
Interior Highlands → contains → St. Francois Mountains ⓘ