Deer Creek - Oso, WA - Jade Hunt (imgur.com) It’s a very residential street with private property signs prominently displayed. There is a small area to park with public access to Deer Creek near the very last house on the road.
https://www.nsa.gov/helpful-links/nsa-foia/declassification-transparency-initiatives/historical-releases/view/article/3880193/capt-grace-hopper-on-future-possibilities-data-hardware-software-and-people-1982/