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Stanton Repeat Photography

Mile 12.7, 13-Mile Rapid, Downstream View from River Right (Stake 1557)

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Stake 1557, 10 July 1889 View Larger Image
10 July 1889
This downstream view from upstream of the debris fan at 13-Mile Canyon shows desert vegetation in the foreground, a high-angle debris fan in the midground, and 13-Mile Rapid in the center. The dominant plants in the foreground are Mormon tea, shadscale, and perennial grasses, likely mesa dropseed.
Photo credit: Franklin A. Nims, 57-RS-287, courtesy of The National Archives

Stake 1557, 31 January 1991 View Larger Image
31 January 1991
A debris flow in the intervening 102 years has deposited several new boulders in the midground, but the wave pattern indicates the rapid has not significantly changed. Several of the Mormon tea and shadscale persist, including one plant in the center foreground. One individual of mesa dropseed appears to have persisted for 102 years in the right foreground; it may be persistant, or simply growing in the same location as a previous plant that has since died. Small beavertail pricklypear appear in the left foreground.
Photo credit: Jane Bernard

Stake 1557, 16 September 2010 View Larger Image
16 September 2010
The rapid and most of the debris fan remains unchanged after 121 years. Some Mormon tea present in both 1889 and 1991 persist in the foreground, and the mesa dropseed also appears to have persisted. Beavertail pricklypear persists since 1991, as do other plants captured in the 1991 image.
Photo credit: Steve Tharnstrom

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