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Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Panoramic photo of Silverton, Colorado, with Sultan Mountain in the distance. Silverton is the town most directly affected by the Gold King mine blowout.
Panoramic photo of Silverton, Colorado, with Sultan Mountain in the distance. Silverton is the town most directly affected by the Gold King mine blowout.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.
Cement Creek following storm event in July, 2004. Note the orange discoloration of the stream derived from weathering of bedrocks and from mined areas. This type of event happens frequently in the Animas Watershed near Silverton, Colorado. View is to the south, with Kendall Mountain in the distance.
Cement Creek following storm event in July, 2004. Note the orange discoloration of the stream derived from weathering of bedrocks and from mined areas. This type of event happens frequently in the Animas Watershed near Silverton, Colorado. View is to the south, with Kendall Mountain in the distance.
USGS scientist measuring pH, Specific Conductance and dissolved oxygen in a remediation ditch constructed with local volcanic rock possessing some acid neutralizing capacity.
Brown's Gulch is below the Brooklyn Mine, a few miles north of Siverton, Colorado, in the Mineral Creek basin.
USGS scientist measuring pH, Specific Conductance and dissolved oxygen in a remediation ditch constructed with local volcanic rock possessing some acid neutralizing capacity.
Brown's Gulch is below the Brooklyn Mine, a few miles north of Siverton, Colorado, in the Mineral Creek basin.
Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Panoramic photo of Silverton, Colorado, with Sultan Mountain in the distance. Silverton is the town most directly affected by the Gold King mine blowout.
Panoramic photo of Silverton, Colorado, with Sultan Mountain in the distance. Silverton is the town most directly affected by the Gold King mine blowout.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.
Cement Creek following storm event in July, 2004. Note the orange discoloration of the stream derived from weathering of bedrocks and from mined areas. This type of event happens frequently in the Animas Watershed near Silverton, Colorado. View is to the south, with Kendall Mountain in the distance.
Cement Creek following storm event in July, 2004. Note the orange discoloration of the stream derived from weathering of bedrocks and from mined areas. This type of event happens frequently in the Animas Watershed near Silverton, Colorado. View is to the south, with Kendall Mountain in the distance.
USGS scientist measuring pH, Specific Conductance and dissolved oxygen in a remediation ditch constructed with local volcanic rock possessing some acid neutralizing capacity.
Brown's Gulch is below the Brooklyn Mine, a few miles north of Siverton, Colorado, in the Mineral Creek basin.
USGS scientist measuring pH, Specific Conductance and dissolved oxygen in a remediation ditch constructed with local volcanic rock possessing some acid neutralizing capacity.
Brown's Gulch is below the Brooklyn Mine, a few miles north of Siverton, Colorado, in the Mineral Creek basin.