Two kinds of horsepower.
Crossing the Red River near Granite, Oklahoma.
Triangulation party of E. O. Heaton.
Image ID: theb0771, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Near Granite, Oklahoma
Photo Date: 1921
Credit: NOAA Photo Library, NOAA Central Library; C&GS Season's Report Heaton 1921
Category: Getting There/Horse/Truck/
• High Resolution Photo Available