1988 Schwinn Cimarron Classic MTB. 

20" C to C Black and Chrome Double Butted Chromoly Frame and Fork.

Fillet Brazed Head Tube

Shimano Deore Components

Double (not Triple) ring in front - removed granny gear.

Rides great and climbs incredibly. 

Also listed locally if you are local.

Schwinn, Trek, Ritchey, GT, Stumpjumper, Mongoose, Specialized, Fuji, Univega, High Sierra, Fat Chance, Litespeed, Fisher, Diamond back