When was the last eruption of Yellowstone?
70,000 years ago
1880
1893
1902
1883
1908
1880
1893
1890
1902
1908
1883
1880
1893
1890
2100 BC
1879
1902
1908
1883
1880
1893
1905
1890
1879
1902
1908
1883
1880
1907
1893
1905
1890
2100 BC
1879
1902
1908
1883
1880
1907
1912
1893
1890
1300 BC
1905
2100 AD
1879
1902
1908
1883
1880
1907
1887
1912
1200 BC
1893
1905
1915
1890
1889
1879
1902
1883
1880
1400 BC
1908
1907
1887
1912
1904
1893
1896
1890
1905
1100 BC
1915
1872
1899
1876
1889
1879
1902
2100 BC
1880
1300 BC
1870
2100 AD
1700
1908
1883
1907
1887
1912
1893
1896
1890
1200 BC
1300 AD
1980
1904
1881
1905
1915
1872
1899
1876
1100 AD
1700
1880
1980
1889
1903
1879
1888
1700 BC
1902
1891
1400 BC
1897
1883
1875
1870
1700
1908
1980
1907
1887
1894
1860
1912
1895
1100 BC
1904
1893
1896
1881
1300 AD
1980
1890
2100 AD
2100 BC
1880s
1700 BC
1700
1905
1700 AD
1915
2500 BC
1872
1899
1876
1889
1886
1888
1860
1880
1903
1879
1859
1891
1880s
1902
2300 BC
1897
2200 BC
1908
1907
1875
1912
1904
1905
1870
1915
1903
2600 BC
1300
1883
1400
1700 AD
1880s
1887
1894
1365
1200
1300
1400
1880s
1700 BC
1365
1880 AD
1200
1400
1300
1870 AD
1700 AD
1880s
1890 AD
2100
1200
1860s
1880 AD