Artwork · California

Duplex Cone

Duplex Cone from directly overhead

Duplex Cone is an artwork in California, at a modelled elevation of 4 m. Rock 2 stands 617 m to the east-northeast, 9.6 miles off. The nearest named place is Tern, a picnic site 0.1 miles away.

The record

What the record says

Built: 1982

Getting there

How to reach it

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Coordinates37.74159, -122.21043

Around it

Named places within 25 miles

Picnic sites

Tern: 0.1 mi
Egret: 0.1 mi
Bufflehead: 0.1 mi
Blue Heron: 0.3 mi
Rail: 0.3 mi

Parks

San Leandro Bay Regional Shoreline: 0.1 mi
Arrowhead Park: 0.1 mi
Scott Lindsey Park: 0.8 mi
Brookfield Village Park: 1.2 mi
Coliseum Gardens Park: 1.3 mi

Nature reserves

Martin Luther King Jr. Regional Shoreline: 0.4 mi
Crab Cove Marine Reserve: 4.0 mi
Butters Canyon: 4.8 mi
Castle Canyon: 5.2 mi
Marjorie Saunders Park: 5.5 mi

Museums

Oakland Aviation Museum: 0.6 mi
Alameda Museum: 2.4 mi
Cohen Bray House: 2.8 mi
Peralta Hacienda Historical: 3.2 mi
Mills College Art Museum: 3.3 mi

Artworks

Watermelon Rock: 0.7 mi
White Elephant Mural: 2.4 mi
Beautiful Coffee To The People: 2.6 mi
Rising Wave: 2.7 mi
Wave Oculus: 2.9 mi

Attractions

San Francisco Air Tours: 0.8 mi
Christmas Tree Lane: 1.5 mi
Alameda Spite House: 2.1 mi
Bat Exhibit: 3.4 mi
Emu: 3.5 mi

Gardens

Rose Garden: 1.6 mi
Lincoln Park Rose Garden: 1.6 mi
William Joseph McInnes Botanic Garden and Arboretum: 3.2 mi
Reading Garden (Roos): 3.5 mi
Kellicutt Garden: 3.5 mi

Peaks

Shellmound: 1.6 mi
High Street Center: 1.8 mi
Pine Top: 3.3 mi
Redwood Peak: 5.6 mi
Pill Hill: 6.2 mi

Historic sites

Alameda Shellmound Plaque: 1.6 mi
City of San Leandro Monument: 2.6 mi
ATK Baseball Field: 2.8 mi
Coast Guard Working Dogs Memorial: 3.5 mi
Coast Guard Auxiliary Memorial: 3.5 mi

Beaches53

Sandy Beach: 0.4 mi
Encinal beach: 4.8 mi
Lake Temescal Beach: 7.4 mi
Toll Plaza Beach: 8.2 mi
Radio Beach: 8.3 mi

Springs26

Eugene Spring: 13.4 mi
El Polín Spring: 13.8 mi
El Polín Spring: 13.8 mi
El Polín Spring: 13.9 mi
Sulfur Spring: 15.6 mi

Ghost towns11

Lynn: 4.3 mi
Russell City: 7.4 mi
Stokes Landing: 10.7 mi
Winehaven: 18.4 mi
Eckley: 21.6 mi

Cliffs8

Chab: 4.5 mi
The Devil's Shelf: 9.4 mi
East Slope Badlands: 15.2 mi
Yellow Bluff: 15.7 mi
Turtle Rock: 16.9 mi

Waterfalls7

Grey Fox Creek Fountain: 11.3 mi
Abrigo Falls: 14.4 mi
Huntington Falls: 14.5 mi
Rainbow Falls: 14.8 mi
Tehan Falls: 15.5 mi

Lighthouses3

Rest areas2

Crystal Springs Safety Roadside Rest Area: 16.4 mi
Rest Stop: 24.4 mi

Natural arches1

Bird Island Arch: 18.7 mi

On the horizon

Summits around it

The highest named summits within 13.0 miles of Duplex Cone. Elevation from each summit’s own record; bearing measured between the two coordinates.

Summit	Bearing	Elevation	Distance
Rock 2	ENE 58°	617 m	9.6 mi
Vollmer Peak	N 356°	581 m	9.8 mi
Wiedemann Hill	E 91°	565 m	11.8 mi
Las Trampas Peak	NE 51°	557 m	10.2 mi
Vail Peak	NE 56°	545 m	10.4 mi
Chaparral Peak	N 356°	540 m	9.5 mi
Round Top	N 7°	531 m	7.6 mi
Grizzly Peak	N 353°	531 m	9.8 mi

Conditions

When to go

Light through the year

Date	Sunrise	Golden hour	Sunset
March equinox	07:13	18:46	19:21
June solstice	05:48	19:56	20:35
September equinox	06:57	18:33	19:07
December solstice	07:21	16:13	16:54

Local time (America/Los_Angeles).

Climate normals

Months averaging 50–80 °F: Feb–Dec.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °F	50	53	55	57	60	63	64	65	65	61	55	50
Precip in	3.4	3.5	2.7	1.4	0.6	0.2	0.0	0.0	0.1	0.9	2.0	3.8

1991–2020 U.S. Climate Normals, NOAA NCEI — Oakland Intl AP, 2 mi away.

Sources

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMap

OpenStreetMap element node/5305216379

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