Columbia, Maryland
Watersheds

Red lines are watershed boundaries.
Click mouse within watershed for info
Web page updates in progress.
"Go" links centers watershed in view.
  • Patuxent Go  EPA Info
    • Middle Patuxent Go MD DNR Info
      • Lower River Hill Tributary Go
      • Middle Patuxent below MPEA Go
      • Middle Patuxent in Gorman Go
      • Middle Patuxent in MPEA Go
      • Pindell School Road Tributary Go
    • Little Patuxent Go   MD DNR Info
      • Beaver Run Go
      • Centenial Lake Go
      • Plumtree Branch Go
      • Gateway Tributary Go
      • Guilford Branch Go
      • Lake Elkhorn Go
      • Lake Kittamaqundi Go
      • Little Patuxent below Elkhorn Go
      • Little Patuxent below Font Hill Go
      • Little Patuxent below Lake Kittamaqundi Go
      • Lower Dorsey Run Go
      • Red Hill Branch Go
      • Upper Dorsey Run Go
      • Wilde Lake Go
  • Patapsco Go EPA Info
    • Lower North Branch Go MD DNR Info
      • Upper Deep Run Go