172101 Brill Tunnel 19 January 2016

172101 heads south out of Brill Tunnel on 19 January 2016 with the 1Y30 10:47 Oxford Parkway to Marylebone Chiltern Railways service. There is evidence of lots of recent lineside work at this location, but it hasn't extended to cutting back the saplings that are now taking over the cutting sides, after the major deforestation of a few years ago.