BNSF 8561 Spruce 25 Nov 18
BNSF 8561 and a cousin MAC throttle up out of The Sag near Spruce, CO as they continue their southbound journey toward the single-track main in Palmer Lake.
Southbound typically travel down Main 1 while northbounds run on Main 2 (seen here sweeping across the right). Every once in a while, a southbound will run down Main 2 (and that's usually a higher-priority stack train), but it's quite rare to catch a northbound heading up Main 1 for some reason. PTC will see new signals installed for each Main facing in both directions, so things may change in the future but that's just total speculation on my part.
BNSF 8561 Spruce 25 Nov 18
BNSF 8561 and a cousin MAC throttle up out of The Sag near Spruce, CO as they continue their southbound journey toward the single-track main in Palmer Lake.
Southbound typically travel down Main 1 while northbounds run on Main 2 (seen here sweeping across the right). Every once in a while, a southbound will run down Main 2 (and that's usually a higher-priority stack train), but it's quite rare to catch a northbound heading up Main 1 for some reason. PTC will see new signals installed for each Main facing in both directions, so things may change in the future but that's just total speculation on my part.