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Onyx Cave Conservation Area

Onyx Cave Conservation Area from directly overhead

Onyx Cave Conservation Area is a nature reserve in Missouri, at a modelled elevation of 190 m. Little Pilot Knob stands 428 m to the southeast, 13 miles off. The nearest named place is Vilander Bluff, a cliff 0.8 miles away. Great River Road passes 48 miles off. 146 named places lie within 25 miles, 20 of them named summits.

What to expect

Operated by
Missouri Department of Conservation

How to reach it

Coordinates38.11241, -91.13726

146 named places within 25 miles

Parks: 38
Springs: 25
  • Blue Springs: 4.7 mi
  • Pratt Spring: 5.0 mi
  • Hamilton Spring: 5.5 mi
  • Cress Spring: 6.0 mi
  • Onondaga Spring: 6.1 mi
Peaks: 20
  • Mineral Hill: 3.7 mi
  • Lea Hill: 6.5 mi
  • Fair View Hill: 7.7 mi
  • Lone Hill: 8.9 mi
  • Fort Hill: 9.3 mi
Ghost towns: 14
Historic sites: 11
  • WWI Memorial Plaque: 15.7 mi
  • Hawkins Homestead: 16.4 mi
  • Blue Star Memorial Highway: 23.5 mi
  • In Loving Memory of Jason J Tonneas: 23.5 mi
  • Disabled Veterans Memorial: 23.6 mi
Cliffs: 8
Attractions: 6
  • Canoehenge: 6.0 mi
  • Meramec Caverns: 9.2 mi
  • Meremec Caverns: 9.2 mi
  • Pontoon Rides: 16.1 mi
  • Old Bus Stop and Gallery Route 66: 18.5 mi
Museums: 5
Rest areas: 2
  • Saint Clair Rest Area (Eastbound): 14.8 mi
  • Saint Clair Rest Area (Westbound): 15.0 mi
Artworks: 2
Beaches: 2
  • LKW Waterfront: 15.8 mi
  • TL Waterfront: 16.1 mi
Gardens: 1
  • Educational Garden: 15.7 mi
Waterfalls: 1
Natural arches: 1
  • Hawkins Cove Natural Bridge: 16.5 mi
Picnic sites: 1
  • Point Picnic Area: 24.1 mi

Summits around it

The highest named summits within 25 miles of Onyx Cave Conservation Area. Elevation from each summit’s own record; bearing measured between the two coordinates.

SummitBearingElevationDistance
Little Pilot KnobSE 136°428 m12.6 mi
Sullivan HillSSW 192°410 m23.7 mi
Hedley KnobSSW 192°404 m24.7 mi
Flint HillSE 140°403 m9.8 mi
Bald KnobS 188°392 m23.4 mi
Litton HillSE 132°384 m10.9 mi
Murry HillSSE 166°375 m22.6 mi
Craig HillSW 218°329 m25.0 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox07:0918:4219:17
June solstice05:4319:5220:32
September equinox06:5318:2819:03
December solstice07:1816:0716:49

Local time (America/Chicago).

Climate normals

Months averaging 50–80 °F: Apr–Oct.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °F303543546371757365544334

1991–2020 U.S. Climate Normals, NOAA NCEI — Steelville 2 N, 15 mi away.

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMap

OpenStreetMap element way/1408878388

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