Laserfiche WebLink
PLATE III. <br />Portal area viewed from rocky ledge approx 250' <br />above impact area, showing excavated road leading <br />into portal, with heavy equipment on impact area, <br />arm ~~^'°^ D^,u°r Di ~..+ ~+.A r_r~..A w°viI in background. <br />I <br />PLATE IV. Overhanging rock above portal area, investigated <br />as suspect area with negative result. <br />• <br />_J' <br />-9- <br />