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Colorado Meteorite Statistics

Here are some fun statistics about Colorado meteorites.

These were compiled from data taken from the
Meteorical Bulletin Database on August 22, 2008.

General Stats

• Colorado's meteorites make up 5.5% of the total number of meteorites found in the U.S.
• Only 4 other states in the U.S. have more meteorite falls/finds than Colorado.

Heaviest (more than 100kg TKW)
309 kg - Guffey
227 kg - Bear Creek
102.7 kg - Rifle

• Download the full list (with weights) in spreadsheet format here.

Earliest discovered
1863 - Russel Gulch
1866 - Bear Creek
1887 - Doyleville
1890 - Franceville
1898 - Mount Ouray

• Download the full list (sorted by year) in spreadsheet format here.

Falls (5 falls witnessed by people)
1924 - Johnstown
1967 - Denver
1973 - Cañon City
1998 - Elbert
2004 - Berthoud

Falls or Finds by Decade (Color chart!!!)
1860s - 2
1870s - 0
1880s - 1
1890s - 2
1900s - 2
1910s - 1
1920s - 4
1930s - 25!
1940s - 13 (or 14)*
1950s - 1
1960s - 18 (or 19)*
1970s - 8
1980s - 1
1990s - 3
2000s - 3

    * It's not known when Fremont Butte was actually found.

Most recent Falls/Finds
2004 - Berthoud
2000 - Hartsel
2000 - Cotopaxi
1998 - Elbert
1995 - New Raymer

Number (out of 85) by Classification (Click here to see the full list!)

Stony = 68 (80.0%)
    Achondrites = 2 (2.4%)
        Diogenites = 1 (1.2%)
        Eucrites = 1 (1.2%)

    Chondrites = 66 (77.6%)
        Ordinary Chondrites = 3 (3.5%)
        H Chondrites = 33 (38.8%)
        H/L Chondrites = 1 (1.2%)
        L Chondrites = 25 (29.4%)
        LL Chondrites = 3 (3.5%)
        EH Chondrites = 1 (1.2%)

Irons = 15 (17.6%)
    IAB Irons = 4 (4.7%)
    IIC Irons = 1 (1.2%)
    IID Irons = 1 (1.2%)
    IIIAB Irons = 4 (4.7%)
    IVA Irons = 1 (1.2%)
    Ungrouped Irons = 3 (3.5%)
    unknown Irons = 1 (1.2%)

Stony-Irons = 2 (2.4%)
    Pallasites = 2 (2.4%)