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Holtz Island

Holtz Island from directly overhead

Holtz Island is a nature reserve in Wisconsin, at a modelled elevation of 241 m. Holy Hill stands 376 m to the north-northwest, 25 miles off. The nearest named place is Idle Isle Park, a park 0.8 miles away. 6 named summits stand within 25 miles.

How to reach it

Coordinates42.91349, -88.13624

Named places within 25 miles

Parks
Historic sites
  • New Berlin Veterans Memorial: 4.1 mi
  • Hales Corners Veteran's Memorial: 4.3 mi
  • Wind Lake Veterans Memorial: 6.0 mi
  • Hadfield Company Lime Kilns: 9.5 mi
  • Blue Star Memorial: 9.5 mi
Nature reserves
Artworks
  • Saint Fiacre: 5.5 mi
  • Pelican: 5.5 mi
  • Cat: 5.5 mi
  • Cat: 5.5 mi
  • Passage "Fall": 5.5 mi
Attractions
  • Boerner Botanical Gardens: 5.5 mi
  • iCOMBAT Waukesha: 7.9 mi
  • African Forest: 9.3 mi
  • Adventure Africa: 9.3 mi
  • Caribou & Sandhill Crane: 9.3 mi
Museums: 39
Gardens: 39
Picnic sites: 36
  • Picnic Area 8: 5.1 mi
  • Picnic Area 6: 5.2 mi
  • Picnic Area 7: 5.2 mi
  • Picnic Area 1: 8.6 mi
  • Tembo Trail: 9.3 mi
Springs: 13
  • Hygeia Spring: 4.2 mi
  • Silurian Spring: 8.0 mi
  • Scuppernong Springs: 16.7 mi
  • Hillside Spring: 16.7 mi
  • Hidden Spring: 16.7 mi
Beaches: 8
Ghost towns: 7
Peaks: 6
  • Buena Park Hill: 9.6 mi
  • Lapham Hill: 15.3 mi
  • Mount Tom: 18.1 mi
  • Mount Bayside: 22.0 mi
  • Bald Bluff: 24.2 mi
Lighthouses: 2

Summits around it

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

SummitBearingElevationDistance
Holy HillNNW 337°376 m24.8 mi
Lapham HillWNW 302°368 m15.3 mi
Bald BluffW 259°317 m24.2 mi
Buena Park HillSSW 210°290 m9.6 mi
Mount TomS 189°265 m18.1 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox06:5718:2819:05
June solstice05:1519:5220:36
September equinox06:4118:1418:52
December solstice07:2115:3616:22

Local time (America/Chicago).

Climate normals

Months averaging 50–80 °F: May–Oct.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °F212434455767727063513827
Precip in1.81.92.14.14.35.63.73.83.83.02.32.1

1991–2020 U.S. Climate Normals, NOAA NCEI — Hales Corners/whitnall Park/bo, 6 mi away.

  • bloodroot103 obs
  • prairie trillium101 obs
  • Virginia waterleaf82 obs
  • Rathke's Woodlouse77 obs
  • Jack-in-the-Pulpit75 obs
  • Common Eastern Bumble Bee75 obs
  • Common Garter Snake72 obs
  • Two-spotted Bumble Bee69 obs

Research-grade iNaturalist community observations within 3 km — what people have recorded, not a species inventory.

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMapWikidata

OpenStreetMap element way/344147180

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