Digital Library Search
![Light reflecting from heliotrope theb1635.jpg Light reflecting from heliotrope](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_theb1635.jpg?itok=aMhERjz7)
Description
Light reflecting from heliotrope.Triangulation party of William M. Scaife (Image credit: Family of Captain William M. Scaife, C&GS;)
Credit
Family of Captain William M. Scaife, C&GS;
Display Date
1922
Location
Montana-Idaho
Collection
Historic Coast & Geodetic Survey
Geodesy
Triangulation
Heliotropes & Signal Lamps
Keywords
Geodesy
Triangulation
Lights
Helio