Pinnacle is a 2-CD set. Southern Pacific equipped many of their WWII era super steam
locomotives with air horns (in addition to steam whistles). Cab Forwards, 4-8-2 Mountains,
and GS 2 through GS 6 4-8-4’s were specifically equipped due to the heavy fog prone in
the San Joaquin Valley and coast routes of California. While penetrating, the overtones
were warm and rounded with some describing them as “mellow. One full CD recorded in
the cab and the second at trackside. Some liberties were taken in recreating events that
didn’t exactly happen as presented.