List of Signal Boxes and Running Lines

Caernarvon to Llanberis

xx	xxxxxxx	xxxxxxxxxxxxxxxxxxxx	xx	xxxxxxxxxxxxxxxxxxxx	xx	xxxxxxxxxxxxxxxxxxxx	xx	xxxxxxxxxxxxxxxxx	xx
M	Yds	October 1960		November 1963		November 1965		November 1966
0	0	Caernarvon No 2		Caernarvon No 2		Caernarvon No 2		Caernarvon

5	1299	Pontrhythallt		Pontrhythallt		Pontrhythallt
		Cwm-y-Glo		Cwm-y-Glo		Cwm-y-Glo
3	364	Llanberis		Llanberis		Llanberis