Kittatinny Valley seen from the Sunrise Mountain lookout on Kittatinny Mountain
The following is a list of landforms and other geographical features located within the political boundaries of Sussex County in northwestern New Jersey in the United States.
Mountains and hills
Ridge and Valley Appalachians physiographic province
- Kittatinny Mountain
- Culver Ridge
- High Point (New Jersey)
- Bird Mountain (New Jersey)
- Blue Mountain (New Jersey)
- Rattlesnake Mountain (New Jersey)
- Sunrise Mountain (New Jersey)
- Paradise Mountain (New Jersey)
- Wallpack Ridge
Highlands physiographic province
- Allamuchy Mountain
- Cage Hill
- Hamburg Mountains (New Jersey)
- Wawayanda Mountain
- Lookout Mountain (New Jersey)
- Maple Hill (New Jersey)
- Pimple Hills
- Pochuck Mountain
- Rutan Hill
- Smiths Hill
- Sparta Mountains
- Sterling Hill (New Jersey)
Valleys
- Kittatinny Valley
- Wallkill Valley
- Wallpack Valley
Rivers and streams
Tillmans Ravine and Brook, Walpack Township
- Wallkill River
- Pequannock River
- Pequest River
- Pochuck Creek
- Black Creek (New Jersey)
- Wawayanda Creek
- Delaware River
- Flat Brook
- Tillmans Brook
- Big Flat Brook
- Little Flat Brook
- Paulins Kill
- Dry Brook
- Culver Brook (West Branch Paulins Kill)
- Nelden Brook
- Musconetcong River
- Lubbers Run
- Punkhorn Creek
Lakes and ponds
