Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Multnomah Co., Oregon, USA

Oldest recorded age at locality: 1.65
Youngest recorded age at locality: 0

mindat Locality ID: 131399
mindat URL: http://www.mindat.org/loc-131399.html

Tectonic Settings:

Total number of sublocalities beneath "Multnomah Co., Oregon, USA": 49
Total number of bottom-level sublocalities: 49

Number of Child Localities: 49
Child Localities:
Angell Brothers Pit (Angel Brothers Inc.)
Bonneville Dam
Bonser Prospect
Bridal Veil Pit (Hershel McGriff)
City Of Portland (MRDS - 10051532)
City Of Portland (MRDS - 10098904)
City Of Portland Pit (City Pit 1525 TRS)
Columbia Brick Works
Dodson Site (Oregon State Highway Division)
Hidden Valley Landfill
Hoyt Quarry (Vance; Multnomah County)
Krueger Quarry (Oregon State Highway Division)
Lakeside Stables (Don Obrist-Lakeside Stables)
Larch Mountain Clay Occurrence
Midvale Quarry (C. T. Howell)
Pacific Stoneware Company
Portland Tunnel Occurrence
Potters Point Pit (US Forest Service)
Quarry (MRDS - 10054250)
Quarry (MRDS - 10054251)
Raymond Smith Pit
Rivergate Quarry (Rivergate Rock Products)
Rocky Butte Quarry
Skyline Boulevard Bauxite Occurrence
Southside Pit (US Forest Service)
Sylvan Brick Company
Unnamed Clay Pit (MRDS - 10280989)
Unnamed Multnomah County Quarry (MRDS - 10275034)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10128951)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10201343)
Unnamed Stone - Crushed/Broken Pit (MRDS - 10275254)
Unnamed Stone - Crushed/Broken Pit (US Forest Service; MRDS - 10201549)
Unnamed Stone - Crushed/Broken Pit (US Forest Service; MRDS - 10201592)
Unnamed Stone - Crushed/Broken Pit (US Forest Service; MRDS - 10274998)
Unnamed Stone - Crushed/Broken Quarry (MRDS - 10128330)
Unnamed Stone - Crushed/Broken Quarry (MRDS - 10153393)
Unnamed Stone - Crushed/Broken Quarry (MRDS - 10153723)
Unnamed Stone - Crushed/Broken Quarry (MRDS - 10250295)
Unnamed Stone Pit (MRDS - 10128536)
Unnamed Stone Pit (US Forest Service; MRDS - 10128824)
Unnamed Stone Pit (US Forest Service; MRDS - 10153578)
Unnamed Stone Pit (US Forest Service; MRDS - 10225864)
Unnamed Stone Pit (US Forest Service; MRDS - 10225947)
Unnamed Stone Pit (US Forest Service; MRDS - 10275039)
Unnamed Stone Pit (US Forest Service; MRDS - 10275163)
Unnamed Stone Pit (US Forest Service; MRDS - 10275376)
Unnamed Stone Pit (US Forest Service; MRDS - 10305651)
Unnamed Stone Quarry (MRDS - 10289469)
US Forest Service (MRDS - 10177463)

Latitude: 45°32'41"N
Longitude: 122°23'10"W
Decimal Degree (lat, lon): 45.544722222222,-122.38611111111

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

No IMA Minerals occur at this locality according to mindat

2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
NAVDAT-391350.900.45±0.45   39135    151871Sylvan Brick Company, Multnomah Co., Oregon, USA NAVDAT NAVDAT 
NAVDAT-128431.6500.83+0.82/-0.83   12843    153206US Forest Service (MRDS - 10177463), Multnomah Co., Oregon, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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