List of Denver and Rio Grande Western Railroad lines

The following rail lines have been owned or operated by the Denver and Rio Grande Western Railroad or its predecessors.

; Denver-Pueblo Joint Line: Denver (Union Station) to Pueblo
*Fort Logan Branch: Englewood (Military Junction) to Fort Logan
*Lehigh Branch: Louviers (Lehigh Junction) to Lehigh Mine
*Castle Rock Branch: Castle Rock to Hathaway
**O'Brien's Quarry Spur: Hathaway to O'Brien's Quarry
*Douglas Quarry Spur: Douglas to Madge Quarry
*Manitou Branch: Colorado Springs (Manitou Junction) to Manitou

; Royal Gorge Line: Pueblo to Salida via Royal Gorge
*Coal Creek Branch: Florence to Coal Creek
*Oak Creek Branch: Florence (Oak Creek Junction) to Oak Creek
*Chandler Creek Branch: Chandler Junction to Chandler Mine
**Fremont Branch: Fremont Junction to Fremont Mine
*Grape Creek Branch: Canon City (Grape Creek Junction) to Westcliffe
*Westcliffe Branch: Texas Creek to Westcliffe
*Howard Branch: Howard's Quarry Junction to Calcite

; Tennessee Pass Line: Salida to Grand Junction via Tennessee Pass
*Calumet Branch: Brown Canon (Hecla Junction) to Calumet
*Leadville Branch: Malta to Leadville
**California Gulch Branch: Oro Junction to Rowe Mill
**Ibex Branch: Leadville to Ibex
***Graham Park Branch: Graham Park Junction to Tucson
**Blue River Branch: Leadville to Dillon
*Ryan Cut-Off : Leadville Junction to Leadville (Leadville Branch)
*Aspen Branch: Glenwood Springs to Aspen

; Gunnison Line: Salida to Grand Junction via Marshall Pass and Black Canyon
*Monarch Branch: Poncha Junction to Monarch
*Mears Junction-Alamosa Line: Mears Junction to Alamosa
**Orient Branch: Villa Grove to Orient
**Crestone Branch: Moffat to Cottonwood
*Pitkin Branch: Parlin to Quartz
*Crested Butte Branch: Gunnison to Anthracite
**Ruby-Anthracite Branch: Crested Butte to Floresta
*Baldwin Branch: Gunnison to Baldwin
**Kubler Branch: Castleton to Kubler
*Aberdeen Branch: Gunnison (Aberdeen Junction) to Aberdeen Quarry
*Lake City Branch: Sapinero to Lake City
*Ouray Branch : Montrose to Ouray
* North Fork Branch: Delta (North Fork Junction) to Oliver

; Utah Division: Grand Junction to Ogden
*Ballard and Thompson Railroad: Thompson to Sego
* Cane Creek Branch: Brendel to Potash
* Sunnyside Branch: Mounds to Sunnyside
*Spring Canyon Branch: Helper (Spring Canyon Junction) to Mutual
*Kenilworth Branch: Helper (Kenilworth Junction) to Kenilworth
*Jennings and Potter's Quarry Branch: Kyune (Jennings Junction) to quarries
* Pleasant Valley Branch: Colton to Clear Creek
**Winter Quarters Spur: Scofield to Winter Quarters
*Marysvale Branch: Thistle to Marysvale
**San Pete Valley Branch : Ephraim to Nephi
***Morrison Branch: Ephraim to Morrison
***Castle Valley Branch: Salina to Nioche
*Tintic Branch: Springville to Silver City
**Goshen Valley Branch: Pearl to Dividend and Iron King
**Mammoth Spur: Mammoth Junciton to Mammoth Mill
*Provo Canyon Branch: Provo to Heber
*Orem Branch: Provo (Provo Junction) to Orem
*Bingham Branch: Midvale to Bingham
**Garfield Beach Extension: Welby to Garfield
**Dalton and Lark Spur: Dalton to Lark
**Bingham Branch Extension: Loline Junction to Cuprum
***Copper Belt Branch: Bingham (Copper Belt Junction) to Montana-Bingham
****Copper Belt-Carr Fork Branch: Yampa Mine Connection to Yampa Mine
*Little Cottonwood Branch: Midvale to Wasatch
*Park City Branch : Roper Junction to Park City
*Lake Park Branch: Farmington (Lake Park Junction) to Lake Park
*Hooper Branch : Roy to Cox

; Pueblo-Alamosa Line: Pueblo to Alamosa
*Old Main Line : Minnequa (Sonora Junction) to Trinidad; branch from Cuchara Junction to Walsenburg (Walsenburg Junction)
**Rouse Branch: Rouse Junction to Rouse (later began at Mayne and then Monson on the C&S trackage rights)
***Old Rouse Branch: Old Rouse Junction to Old Rouse Mines
**Engleville Branch: Engleville Junction to Engleville
*Zinc Smelter Spur: Minnequa (Zinc Junction) to Blende
*Capers Branch: Mustang to Capers (including part of the Old Main Line near Capers)
*Colorado and Southern Railway trackage rights: Walsenburg to Longsdale Junction
**Reilly Canon Branch: Longsdale Junction to Boncarbo
*Loma Branch: Walsenburg (Loma Junction) to Alamo
**New Pacific Mine Spur: Pictou (New Pacific Junction) to New Pacific Mine
*Reliance Branch: La Veta (Reliance Junction) to Ojo
*Tropic Spur: La Veta (Tropic Junction) to Tropic
*Creede Branch: Alamosa to Creede

; Alamosa-Durango Line: Alamosa to Durango
*Santa Fe Branch: Antonito to Santa Fe
**La Madera Branch: Taos Junction to La Madera
*Chama Lumber Spur: Chama (Biggs Junction) to Tierra Amarilla
*Pagosa Springs Branch: Gato (Pagosa Junction) to Pagosa Springs
*Rio Grande and Southwestern Railroad: Lumberton to Gallinas
*Farmington Branch: Carbon Junction to Farmington
*Silverton Branch: Durango to Silverton

; Moffat Line: Denver (Union Station) to Dotsero (Tennessee Pass Line) via Moffat Tunnel
*Corona Line: Newcomb to Vasquez (old line over Corona Pass; abandoned when Moffat Tunnel opened)
*Craig Branch: Bond (Orestod) to Craig
** Energy Spur: Hitchens to Energy

;Rio Grande Southern Railroad: Ridgway (Ouray Branch) to Durango
*Telluride Branch: Vance Junction to Pandora

References

* [http://utahrails.net/drgw/rg-track-profiles.php D&RGW track profiles: 1923, 1934, and 1969]