Trailblazers were out yesterday to check the condition of trail between Letter M and O.  Some snow was bladed back onto trail by seismic company but trail still very icy and rough.  Did not make it to N as a ravine was impassable on existing trail due to ice, icebanks, and ruts.  We will look for a detour or try again when more snow accumulates.  Trailblazers are hoping seismic activity is completed within a week or so then will get trail back in good condition...if season isn't over*!@#.