The Lakewood Mill was the largest tungsten concentrator in the world when it was built near North Boulder Creek in Boulder County, Colorado, in 1908 by the Primos Company of Primos, Pennsylvania. The mill was managed by Chauncy F. Lake, who...
Ore-dressing plants--Colorado--Boulder County--1910-1920.; Tungsten mines and mining--Colorado--Boulder County--1910- 1920.; Boulder County (Colo.)--1910-1920.
View of the Primos Chemical Company mill and Rio Grande Southern Railroad tracks beside the San Miguel River in Vanadium (San Miguel County), Colorado. Shows frame buildings and brick or metal smokestacks in a valley. Denver & Rio Grande freight...
Denver and Rio Grande Railroad Company--1910-1920.; Primos Chemical Company--Buildings--1910-1920.; Vanadium industry--Colorado--Vanadium--1910-1920.; San Miguel River (Colo.)--1910-1920.; Vanadium (Colo.)--1910-1920.;...
Miners work inside the candle lit Primos Chemical Company vanadium mine in Vanadium (San Miguel County), Colorado, with picks, shovels, ore car, and ladder.
Primos Chemical Company--Facilities--1900-1910.; Mine railroads--Cars--Colorado--Vanadium--1900-1910.; Vanadium industry--Colorado--Vanadium--1900-1910.; Vanadium (Colo.)--1900-1910.; Interiors--Colorado--Vanadium--1900-1910.;...
View of the Primos Chemical Company vanadium mill complex in Vanadium (San Miguel County), Colorado shows: smokestacks, dump truck, railroad tracks and cars "D. & R. G.", and the San Miguel River.
Denver and Rio Grande Railroad Company--1910-1920.; Primos Chemical Company--Buildings--1910-1920.; Vanadium industry--Colorado--Vanadium--1910-1920.; San Miguel River (Colo.)--1910-1920.; Vanadium (Colo.)--1910-1920.;...
View in Vanadium, San Miguel County, Colorado, shows a man posing on Rio Grande Southern Railroad tracks, a horse-drawn ore wagon, Primos Chemical Company mill buildings, and dwellings.
Rio Grande Southern Railroad--1910-1920.; Vanadium (Colo.)--1910-1920.; Buildings--Colorado--Vanadium--1910-1920.; Carts & wagons--Colorado--Vanadium--1910-1920.; Railroad tracks--Colorado--Vanadium--1910-1920.
The primary objective of this index is to contain a comprehensive listing of place names or sites in Colorado that would direct the researcher
to recent and readily available publications. Included in this publication for each site or place name,...