Yosemite Rock Fall Database Narratives 1857–2011
COVER Photograph of the October 11, 2010, rock fall from the southeastern face of El Capitan. Photograph by Luke Lydiard, used with permission. Summary Narratives to Accompany Data Series 746 Historical Rock Falls in Yosemite National Park, California (1857–2011) By Greg M. Stock, Brian D. Collins, David J. Santaniello, Valerie L. Zimmer, Gerald F. Wieczorek, and James B. Snyder This document contains the summary narratives from each rock fall event listed in the data base inventory (Yosemite rock fall database 1857-2011.xlsx). The narratives highlight eyewitness reports and other written descriptions of the events, which contain many details of the rock falls not fully captured by the other data categories. Whereas all of the information provided can be found in the database itself, the narrative descriptions are included in this format for the primary purpose of improving readability, such that they can be browsed and studied as a single continuous document. In addition to the narratives, identifying information and general details are also provided, including the ID #, location, failure type, season, date and time, and relative size, in the following format: ID Number Location information Failure type Season Date (mo/day/yr) Relative size Explanations for these categories can be found both in the database and in the database report. ID Number Location information Failure type Season Date (mo/day/yr) Relative size 1857000001 Taft Point Profile Cliff RF n/a n/a/n/a/1857 extremely large (1) From Hutchings (1886): "Among these, however, one point stands out somewhat prominently, known as Profile or Fissure Mountain. ... The crown of this bluff is nearly three hundred feet higher than any of its illustrious compeers in this immediate vicinity ..
[Show full text]