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Effects of the flood and mudflow of December 1966 in Dragon Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood and mudflow of December 1966 in Dragon Creek. Channel of Dragon Creek looking downstream in the main part of the Hindu Amphitheater toward the mescal pit, where the men are standing. Muddy debris deposited by the mudflow in left foreground extends downward to within 3 ft (0.9 m) of the present streambed. Cutting by the mudflow and streamflow stages of the flood formed a benchlike feature on the left bank 6-7 ft (1.8-2.1 m) above the streambed. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 34-C in U.S. Geological Survey. Professional Paper 980. 1977.

Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Coconino County, Arizona, Cooley, M.E. Collection, Grand Canyon National Park Collection, National Parks, Photographers, All tags...

Effects of the flood of December 1966 in Fuller Canyon, Kaibab Plateau. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood of December 1966 in Fuller Canyon, Kaibab Plateau. Fuller Canyon has a wide grass-covered floor which is bordered by a forest of pine, spruce, and some aspen. An old arroyo in Fuller Canyon that was deepened and slightly widened by the flood. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 20-A in U.S. Geological Survey. Professional Paper 980. 1977.

Erosion caused by the flood of December 1966 in Outlet Canyon, Kaibab Plateau. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Erosion caused by the flood of December 1966 in Outlet Canyon, Kaibab Plateau. Renewed arroyo cutting in Outlet Canyon between a point about 0.50 mi (0.8 km) downstream from the Point Sublime Trail and the edge of the plateau; the cutting deepended the old channel 1-2 ft (0.3-0.6 m). Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 21 in U.S. Geological Survey. Professional Paper 980. 1977.

Point Sublime Trail. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Debris slide along the Point Sublime Trail 0.25 mi (0.4 kilometer) east of Outlet Canyon. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 9 in U.S. Geological Survey. Professional Paper 980. 1977.

Mescal pit damaged by the flood of December 1966 along Clear Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Mescal pit damaged by the flood of December 1966 along Clear Creek. Cross sections of the mescal pit exposed mainly by lateral cutting during the flood. Depth of cutting is about equal to the height of the man. Wood debris gives an indication of the flood crest. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 15-C in U.S. Geological Survey. Professional Paper 980. 1977.

Mudflow at the confluence of Kanab Canyon and Modred Abyss. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Mudflow at the confluence of Kanab Canyon and Modred Abyss. Mudflow debris near the mouth of Kanab Canyon. The light-colored or clear boulders were cleaned by streamflow that occurred after the mudflow event. The log in the middle foreground was carried by the mudflow. The mudflow is concave upward and forms a notch or channellike feature that was downcut only slightly by the streamflow. Note lateral extent of mudflow. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 39-E in U.S. Geological Survey. Professional Paper 980. 1977.

Mudflow at the confluence of Kanab Canyon and Modred Abyss. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Mudflow at the confluence of Kanab Canyon and Modred Abyss. View looking upstream along the mudflow that originated in Kanab Canyon. Photograph taken just left of photo no. 48. Photographs nos. 48 and 49 show almost the entire mudflow deposit. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 39-B in U.S. Geological Survey. Professional Paper 980. 1977.

Effects of the flood of December 1966 in Fuller Canyon, Kaibab Plateau. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood of December 1966 in Fuller Canyon, Kaibab Plateau. Fuller Canyon has a wide grass-covered floor which is bordered by a forest of pine, spruce, and some aspen. A diamond-shaped gravel fan that was deposited at the downstream terminus of the arroyo. The gravel fan is 150 ft (46 m) long and 100 ft (30 m) wide and is the largeset single deposit of gravel on the Kaibab Plateau. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 20-B in U.S. Geological Survey. Professional Paper 980. 1977.

Effects of the flood and mudflow of December 1966 in Dragon Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood and mudflow of December 1966 in Dragon Creek. Channel of Dragon Creek looking downstream. Terraces along both banks were damaged but not detroyed. The lower 4 ft (1.2 m) of the juniper in the right foreground is plastered with mud. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 34-B in U.S. Geological Survey. Professional Paper 980. 1977.

Bright Angel Creek. Grand Canyon National Park,Coconino County, Arizona. Circa 1966.

Album caption and index card: Bright Angel Creek 1,000 ft (305 m) above. Channel after flood of December 1966. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 30-B in U.S. Geological Survey. Professional Paper 980. 1977.

Dragon Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Mudflow debris on the terrace on the right bank of Dragon Creek. The location of the mescal pit, which was destroyed by the flood, is near that of the helicopter. Mudflow debris covers this area from canyon wall to canyon wall. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 17 in U.S. Geological Survey. Professional Paper 980. 1977.

Shinumo Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966

Album caption and index card: Shinumo Creek (site 54) looking upstream. The crest of the flood (indicated by level rod) was about 5.5 feet (1.7 meters) above the creek bed and did not inundate the terraces 6 feet (1.8 m) above the bed. At this site, the flood flow cleared only the bed because the sides of the channel and the terraces were protected by dense riparian vegetation. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 4 in U.S. Geological Survey Professional Paper 980. 1977..

Clear Creek tributary, Walhalla Plateau. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood of December 1966 along Clear Creek tributary 3, Walhalla Plateau. Gravel bar deposited downstream from the 300 ft long (90 m long) scour. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 19-C in U.S. Geological Survey. Professional Paper 980. 1977.

Mouth of Crystal Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Edge of the mudflow at the mouth of Crystal Creek where a sample was taken to estimate the consistency of the mud during the flood of December 1966. The mud (dark deposits) flowed over the pre-flood deposits (light deposits indicated by spade) of the Colorado River. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 6 in U.S. Geological Survey. Professional Paper 980. 1977.

Effects of the flood and mudflow of December 1966 in Milk Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Effects of the flood and mudflow of December 1966 in Milk Creek. Cleared and smoothed channel of Milk Creek after the mudflow. Note that the mudflow cleared the channel of gravel, loose boulders, and vegetation. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 34-A in U.S. Geological Survey. Professional Paper 980. 1977.

Damage to structures near the Phantom Ranch, flood of December 1966. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Damage to structures near the Phantom Ranch, flood of December 1966. U.S. Geological Survey residency is in left center. The new channel of Bright Angel Creek crosses the terrace between the Survey residency and the cottonwoods, and the creek flows under part of the wranglers' quarters. The undercut corner of the wranglers' quarters collapsed after this photograph was taken. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 13 in U.S. Geological Survey. Professional Paper 980. 1977.

Phantom Ranch Campground. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Damage to the Phantom Ranch Campground caused by the flood of December 1966. Prior to the flood, restrooms were located in the area in the center, and a bridge crossed the creek in the foreground to provide access to the campground. The fireplace at left center indicates the former ground level. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 14 in U.S. Geological Survey. Professional Paper 980. 1977.

Walhalla Glades. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Walhalla Glades (site 26). The flood of December 1966 deepened the channel - renewed arroyo cutting - by 1/2-2 ft (0.2 to 0.6 m) downstream from site 26; upstream the channel was deepened intermittently by scours. The low bench on the right side of the channel represents the level of the channel prior to the flood. The level rod indicates the crest of the flood. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 18 in U.S. Geological Survey. Professional Paper 980. 1977.

Dragon Creek. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Dragon Creek (site 46), looking downstream along the slope-area reach. Note channel scoured to clean bedrock. Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 7-A in U.S. Geological Survey. Professional Paper 980. 1977.

Erosion caused by the flood of December 1966 in Outlet Canyon, Kaibab Plateau. Grand Canyon National Park, Coconino County, Arizona. Circa 1966.

Album caption and index card: Erosion caused by the flood of December 1966 in Outlet Canyon, Kaibab Plateau. Renewed arroyo cutting in Outlet Canyon between a point about 0.50 mi (0.8 km) downstream from the Point Sublime Trail and the edge of the plateau; the cutting deepened the old channel 1-2 ft (0.3-0.6 m). Grand Canyon National Park, Coconino County, Arizona. ca. 1966. Published as Figure 21 in U.S. Geological Survey. Professional Paper 980. 1977.