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Stanton Repeat Photography

Mile 0.0, Paria River Delta, Downstream View from River Left (Stake 1552a)

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Stake 1552a, 28 December 1889 View Larger Image
28 December 1889
Nims’ view downstream of the confluence of the Paria and Colorado rivers shows the edge of the Paria River delta and a small lagoon below the sandbar. It also shows the rise of Lee’s Backbone, which is capped with Shinarump Conglomerate as shown in the foreground. Stanton’s railroad would have crossed the Backbone on its top before dropping down into Marble Canyon. The delta has recently aggraded during a Paria River flood and is devoid of riparian vegetation.
Photo credit: Franklin A. Nims, 57-RS-260, courtesy of The National Archives

Stake 1552a, 29 January 1991 View Larger Image
29 January 1991
The delta has been scoured as the result of river reworking and changes to the mouth of the Paria River, which shifted from the upper side of the debris fan to its lower side around 1912. The remaining debris fan on the right side is reduced in size and the small lagoon above it has filled in with rock and sediment. The left shoreline remain the same, with the addition of tamarisk at river level. Also, the rock in the center of the channel persists from 1889. Shadscale individuals are on the ledge left of center.
Photo credit: Robert H. Webb

Stake 1552a, 21 April 2011 View Larger Image
21 April 2011
On the ledge in front of the camera station, a Mormon tea and two shadscale individuals persist from 1889, although one shadscale has died. The tamarisk individuals at the river edge remain but are larger, and riparian vegetation has increased on both sides of the river. Rock has broken away from the pointed ledge in the center of the view below a large crack apparent in 1991.
Photo credit: Bill Lemke

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