The six D&RGW Class C-17 Consolidation (2-8-0) locomotives were reclassed from various Class 70 and Class 71N locomotives during the D&RG-D&RGW transitional renumbering/reclassing of 1924. Interestingly enough, most of the rest of the Class 70 units became Class C-19.
| Unit | Mfgr. | Class | Serial | Built | Notes |
| D&RGW 300 | Baldwin | C-17 | 8563 | 1887 | Originally D&RG Class 70 #417 Scrapped May-1936 |
| D&RGW 301 | Baldwin | C-17 | 8629 | 1887 | Originally D&RG Class 70 #421 Scrapped May-1936 |
| D&RGW 302 | Baldwin | C-17 | 8632 | 1887 | Originally D&RG Class 70 #422 Scrapped Oct-1938 |
| D&RGW 303 | Baldwin | C-17 | 8564 | 1887 | Originally D&RG Class 70 #418 Scrapped Sep-1935 |
| D&RGW 304 | Baldwin | C-17 | 8625 | 1887 | Originally D&RG Class 70 #419 Scrapped Nov-1934 |
| D&RGW 305 | Baldwin | C-17 | 11022 | 1890 | See Note 1 |
| D&RGW 306 | Baldwin | C-17 | 14487 | 1895 | See Note 2 |
Note 1: The unit to become D&RGW 305 was built in 1895 as the Utah Central #1. in 1898, it became Rio Grande Western Class 16N #1. The unit was standard-gauged in 1901, renumbered to RGW 13, and became RGW Class 77S. In 1908, it became D&RG 555, still Class 77S. In 1918, it was once again converted to 3-foot (narrow) gauge, kept its number as D&RG 555, and assigned class 71N. In 1924, it was renumbered to D&RGW 305 and given class C-17. The unit was scrapped during 1927.
Note 2: The unit to become D&RGW 306 was originally built as Great Falls & Canada #3. Went to Utah Central before 1898, then to the Rio Grande Western as their Class 16N #3 in 1898. The unit was standard-gauged in 1901, renumbered to RGW #1, and became RGW Class 77S. In 1908, it became D&RG 554, still Class 77S. In 1918, it was once again converted to 3-foot (narrow) gauge, kept its number as D&RG 554, and assigned class 71N. In 1924, it was renumbered to D&RGW 306 and given class C-17. The unit was scrapped during Jan-1935.