Survey of Neahkahnie Mountain, Oregon
conducted by Francis Drake in 1579 to claim the lands for Queen Elizabeth I and England.
Verification of Francis Drake
Survey of Artifacts on Neahkahnie Mountain by Phil Costaggini, an Oregon State University Civil Engineering masters candidate advised by Dr. Robert J. Shultz, A.S.C.E.. 1982
Longer version: 1985
Francis Drake Survey Rocks
"W" Rock Map
Peter Seaders & Beth Peutz, Discussion and Review of Phillip A. Costaggini's Project on Neahkahnie Mountain, Oregon