Surviving steam locomotives in the USA organized by Gauge

12" (9, op:8, op:1)
14½" (1, sto:1)
14" (4, op:3)
15" (49, op:30, sto:7, pri:1, op:2, op:1, re:1, dismantled:1, re:1, oos:1, re:1)
16" (10, oos:1, sto:1, op:7, re:1)
18" (27, pri:4, op:4, sto:1, oos:1, op:1, unk:1, re:1)
19" (5, re:2, op:2)
20" (5, re:1, dismantled:1)
22" (8, op:1, oos:2)
24" (111, op:44, sto:16, re:6, gone:4, oos:3, op:4, unk:6, pri:5, derelict:1, aban:2)
30" (38, op:7, re:4, unk:2, sto:10, pri:1, re:1, :1, aban:1)
31" (2)
36" (255, pri:1, pri:4, aban:1, op:85, aban:8, re:21, sto:23, unk:4, oos:7, re:1, op:4, display serviceable:1, dismantled:2, op:1, re:3, :1, op:2, derelict:1, construction:1)
39½" (2, re:1)
4'-8½" (1265, re:3, aban:12, re:106, sto:107, op:119, sunk:31, re:22, pri:1, pri:7, buried:6, oos:24, overhaul:1, re:2, op:2, unk:8, dismantled:5, under construction:1, scrapped:4, auxiliary water tender:1, re:1, display serviceable:1, gone:1, proposed:1, re:3, parts source:1, moving display:2, pri:1, pri:1, disassembled:1, scrapped?:1, :1, derelect:1)
4'-8" (7, op:5, sto:1)
40" (2, re:1)
41" (3, pri:1)
42" (16, oos:1, sto:7, re:1, op:2, pri:1)
48" (5, re:1, pri:1)
5' (3)
600mm (27, sto:7, pri:3, op:4, oos:1, unk:1, op:1)
ng (67, op:6, re:10, unk:2, sto:7, gone:2, pri:6, sunk:1, aban:1)
Status Key: op=>operational sto=>stored pri=>private re=>restoration oos=>out of service unk=>unknown aban=>abandoned