There are actually 9 volumes in the set and they are listed with the primary subject matter shown below:
Trails Among the Columbine 1985 (Misc. Subjects)
Trails Among the Columbine 1986 (Silverton / San Juan Mountains)
Trails Among the Columbine 1987 (San Juan Extension / C&TS)
Trails Among the Columbine 1988 (Lake City and Creede Branches)
Trails Among the Columbine 1989 (Gunnison)
Trails Among the Columbine 1990 (Marshall Pass)
Trails Among the Columbine 1991/1992 (Salida)
Trails Among the Columbine 1993/1994 (The Monarch Branch)
Trails Among the Columbine 1995/1996 (D&RG's Calumet Branch / Turret Mining Area)
I am pleased to have all of the volumes in my personal library.
Daniel Sheffer
Conifer, CO