Bore Hole
A bore hole in the rock into which black power was tamped and then detonated to loosen the rock from the working face when the workers pushed the road bed through this cut in the hill side.
Carrizo Gorge Railway East of Tunnel #5 at MP 97.
Jacumba - San Diego County, California.
(January 10, 2015)
1,301
views
2
faves
0
comments
Uploaded on March 19, 2015
Taken on January 10, 2015
Bore Hole
A bore hole in the rock into which black power was tamped and then detonated to loosen the rock from the working face when the workers pushed the road bed through this cut in the hill side.
Carrizo Gorge Railway East of Tunnel #5 at MP 97.
Jacumba - San Diego County, California.
(January 10, 2015)
1,301
views
2
faves
0
comments
Uploaded on March 19, 2015
Taken on January 10, 2015