Not widely known about, Project 8200 was an effort within the US Army’s remote viewing unit to verify claims of subterranean extraterrestrial bases made by CIA analyst Pat Price in the 1970s.
We obtained every ’82 to ’86-era declassified file of Project 8200, most of which were never officially reported to their higher-ups in the intelligence community.
Sources in order of mention
Atwater IRVA presentation: https://www.irva.org/conferences/speakers/atwater.html
All maps, notes and recordings are part of Grill Flame/US Army Project 8200 and were declassified by Skip Atwater. They are being presented here for educational purposes.
Description of Personnel Associated ET Bases (Mel Riley session): https://www.cia.gov/library/readingroom/docs/CIA-RDP96-00789R003800110001-8.pdf
Mount Hayes, Dan Battle Brook (Creative Commons 2.0): https://commons.wikimedia.org/wiki/File:Mount_Hayes.jpg
1986 Japan Airlines sketch 1 (CC): https://commons.wikimedia.org/wiki/File:Terauchi_se_twee_tuie_sy_aan_sy,_a.jpg
1986 Japan Airlines sketch 2 (CC): https://commons.wikimedia.org/wiki/File:Terauchi-moederskip_van_17_November_1986,_b.jpg