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Stanton Repeat Photography

Mile 203.6, Rapid 19, Downstream View from River Left (Stake 2718)

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Stake 2718, 8 June 1889 View Larger Image
8 June 1889
This downstream view from river left shows the rocky debris fan in middle of Rapid 19, the last primary rapid in the Mile Long Rapid complex. This view primarily shows desert vegetation, netleaf hackberry along the shoreline, and what appears to be a dead tree in the center of the grainy view.
Photo credit: Franklin A. Nims, 57-RS-52, courtesy of The National Archives

Stake 2718, 24 July 1992 View Larger Image
24 July 1992
The dead tree is a Utah juniper that is still standing. A radiocarbon sample taken from this tree suggests it died 200-250 years ago. Other dead juniper snags are in this reach, and several live Utah junipers are present, including one behind the dead tree. What is not obvious in the 1889 view is that several single-leaf ash trees were present and persist. Several Mormon tea persist as well. The netleaf hackberry, seen as a line in the midground, mostly persist, and tamarisk trees are present, most notably above the sandbar in the right foreground.
Photo credit: Gary B. Bolton

Stake 2718, 1 August 2010 View Larger Image
1 August 2010
The dead Utah juniper is still standing, and the most dramatic change in the view is the dead or dying tamarisk that have been killed by tamarisk leaf beetles. Numerous seedling netleaf hackberry are present within the line of riparian trees, suggesting the possibility that this native species may replace tamarisk. Short-lived desert species, including rubber rabbitbrush and some perennial grasses, have persisted the intervening 18 years despite severe drought conditions.
Photo credit: Steve Young

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