Route:
P21 Hanover Pkwy-New Carrollton
- Choose your direction:
- to North to Greenbelt
- to South to New Carrollton
P21 to North to Greenbelt
- New Carrollton+Bus Bay T3
- Harkins Rd+#7900
- Harkins Rd+W Lanham Dr
- Harkins Rd+Annapolis Rd
- Annapolis Rd+W Lanham Dr
- Annapolis Rd+#7990
- Annapolis Rd+Riverdale Rd
- Annapolis Rd+85 Av
- Annapolis Rd+Princess Garden Pkwy
- Annapolis Rd+Princess Garden Pkwy
- Princess Garden Pkwy+Annapolis Rd
- Princess Garden Pkwy+City Hall
- Princess Garden Pkwy+Hickory Hill Av
- Princess Garden Pkwy+Woodburn Ct
- Princess Garden Pkwy+#6512
- Princess Garden Pkwy+Tiffany Ln
- at stop
- Doctors Hospital Rdwy+Bus Shelter
- Hanover Pkwy+Green Crescent Ct
- Hanover Pkwy+Spring Manor Dr
- Hanover Pkwy+Megan Ln
- Hanover Pkwy+Village Park Dr
- Hanover Pkwy+Hunting Rdg
- Hanover Pkwy+Greenbrook Dr
- Hanover Pkwy+Hanover Dr
- Hanover Pkwy+Ora Glen Dr
- Ora Glen Dr+S Ora Ct
- Ora Glen Dr+Greenbrook Dr
- Ora Glen Dr+Morrison Dr
- Ora Glen Dr+Mandan Rd
- Mandan Rd+Canning Ter
- Mandan Rd+#7501
- Mandan Rd+#7516
- Mandan Rd+#7648
- Mandan Rd+Hanover Pkwy
- Hanover Pkwy+#7800
- Hanover Pkwy+#7716
- Hanover Pkwy+Greenbelt Rd
- Greenbelt Rd+Greenway Ctr
- Lakecrest Dr+Lakecrest Cir
- Lakecrest Dr+Lakeside Dr
- Lakeside Dr+Westway
- Westway+Ridge Rd
- Ridge Rd+12 Ct
- Southway+Crescent Rd
- Crescent Rd+Gardenway
- Gardenway+Ridge Rd
- Ridge Rd+Hamilton Pl
- Ridge Rd+38 Ct
- Ridge Rd+Eastway
- Ridge Rd+Northway
- Ridge Rd+Plateau Pl
- Ridge Rd+58 Ct
- Ridge Rd+Laurel Hill Rd
- Ridge Rd+Research Rd
- Ridge Rd+73 Ct
- Lastner Ln+Julien Ct
- Lastner Ln+Ivy Ln
- Ivy Ln+Ridge Rd
- Kenilworth Av+Crescent Rd
- Ivy Ln+Turner Pl
- Ivy Ln+#6404
- Ivy Ln+#6301
- Cherrywood Ln+Ivy Ln
- Greenbelt Metro Dr+Cherrywood Ln
- Greenbelt+Bay D
- at stop
P21 to South to New Carrollton
- Greenbelt+Bay D
- at stop
- Greenbelt Metro Dr+Cherrywood Ln
- Cherrywood Ln+Ivy Ln
- Ivy Ln+6303
- Ivy Ln+Crowne Plaza
- Ivy Ln+Turner Pl
- Ridge Rd+Ivy Ln
- Ivy Ln+Lastner Ln
- Lastner Ln+Julien Ct
- Ridge Rd+73 Ct
- Ridge Rd+Research Rd
- Ridge Rd+Laurel Hill Rd
- Ridge Rd+#57 Court
- Ridge Rd+Plateau Pl
- Ridge Rd+Northway
- Ridge Rd+Eastway
- Ridge Rd+35 Ct
- Ridge Rd+33 Ct
- Ridge Rd+Gardenway
- Crescent Rd+Gardenway
- at stop
- Southway+Crescent Rd
- Ridge Rd+12 Ct
- Westway+Ridge Rd
- Lakeside Dr+Westway
- Lakeside Dr+Lakecrest Dr
- Lakecrest Dr+Legion Dr
- Greenbelt Rd+Greenway Ctr
- Hanover Pkwy+Greenbelt Rd
- Hanover Pkwy+#7716
- Hanover Pkwy+#7800
- Hanover Pkwy+Mandan Rd
- Mandan Rd+#7648
- Mandan Rd+#7516
- Mandan Rd+#7501
- Mandan Rd+Court #7
- Ora Glen Dr+Mandan Rd
- Ora Glen Dr+Morrison Dr
- Ora Glen Dr+Wintergreen Ct
- Ora Glen Dr+Ora Ct
- Hanover Pkwy+Greenway Center Dr
- Hanover Pkwy+Hanover Dr
- Hanover Pkwy+Greenbrook Dr
- Hanover Pkwy+Hunting Ridge
- Hanover Pkwy+Village Park Dr
- Hanover Pkwy+Megan Ln
- Hanover Pkwy+Spring Manor Dr
- Hanover Pkwy+Green Crescent Ct
- Doctors Hospital Rdwy+Bus Shelter
- Princess Garden Pkwy+Greenfield Dr
- Princess Garden Pkwy+#6512
- Princess Garden Pkwy+Woodburn Ct
- Princess Garden Pkwy+Hickory Hill Av
- Princess Garden Pkwy+City Hall
- Princess Garden Pkwy+Annapolis Rd
- Annapolis Rd+85 Av
- Annapolis Rd+Riverdale Rd
- Annapolis Rd+#7990
- Annapolis Rd+W Lanham Dr
- Harkins Rd+Annapolis Rd
- Harkins Rd+W Lanham Dr
- Harkins Rd+Ellin Rd
- New Carrollton+Bus Bay T3