Tony Cee
Here are links to the sources I used:

Jay Mountain:
https://geonames.usgs.gov/apex/f?p=gnispq:3:::NO::P3_FID:953949

Jay Mountains: 
https://geonames.usgs.gov/apex/f?p=138:3:::NO:3:P3_FID,P3_TITLE:953950

Jay Benchmark
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=PG2069