Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Logansville | Populated Place | 72 | Morris | 40 43 33 N | 074 31 19 W |
| Long Hill | Populated Place | 83 | Morris | 40 42 28 N | 074 25 47 W |
| Long Hill | Summit | 256 | Morris | 40 45 56 N | 074 39 48 W |
| Long Hill | Summit | 126 | Morris | 40 41 55 N | 074 26 18 W |
| Long Hill Church | Church | 115 | Morris | 40 43 20 N | 074 24 13 W |
| Long Valley | Populated Place | 163 | Morris | 40 47 09 N | 074 46 49 W |
| Long Valley Middle School | School | 162 | Morris | 40 46 59 N | 074 47 02 W |
| Long Valley School (historical) | School | 194 | Morris | 40 47 19 N | 074 47 02 W |
| Longwood Lake | Reservoir | 232 | Morris | 40 58 42 N | 074 32 51 W |
| Longwood Lake Dam | Dam | 232 | Morris | 40 58 42 N | 074 32 51 W |
| Lower Berkshire Methodist Church | Church | 215 | Morris | 40 54 45 N | 074 36 34 W |
| Lower Berkshire Valley School | School | 215 | Morris | 40 54 45 N | 074 36 31 W |
| Lower Kakeout Dam | Dam | 196 | Morris | 40 59 32 N | 074 21 51 W |
| Lower Longwood | Populated Place | 238 | Morris | 40 57 53 N | 074 33 53 W |
| Lower Montville | Populated Place | 62 | Morris | 40 54 02 N | 074 21 53 W |
| Lurker Park | Park | 41 | Morris | 40 49 53 N | 074 20 39 W |
| Lyonsville | Populated Place | 233 | Morris | 40 57 24 N | 074 26 23 W |
| Macopin Reservoir | Reservoir | 185 | Morris | 41 01 11 N | 074 24 11 W |
| Madison | Populated Place | 80 | Morris | 40 45 35 N | 074 25 02 W |
| Madison Golf Course | Locale | 104 | Morris | 40 44 55 N | 074 25 40 W |
| Madison Heights | Populated Place | 110 | Morris | 40 45 13 N | 074 25 55 W |
| Madison High School | School | 78 | Morris | 40 46 14 N | 074 24 30 W |
| Madison House | Building | 41 | Morris | 40 45 53 N | 074 25 39 W |
| Madison Junior High School | School | 71 | Morris | 40 45 25 N | 074 24 35 W |
| Madison Station | Locale | 77 | Morris | 40 45 25 N | 074 24 58 W |
| Mahlon Dickerson County Reservation | Park | 325 | Morris | 40 59 45 N | 074 35 10 W |
| Mahoney Library | Building | 119 | Morris | 40 46 53 N | 074 26 10 W |
| Malapardis | Populated Place | 84 | Morris | 40 49 46 N | 074 25 55 W |
| Malapardis Brook | Stream | | Morris | 40 49 19 N | 074 25 03 W |
| Malaparids Park | Park | 41 | Morris | 40 49 56 N | 074 27 09 W |
| Mallinckrodt Convent | Church | 190 | Morris | 40 45 27 N | 074 36 09 W |
| Manor Lake | Reservoir | 107 | Morris | 40 52 55 N | 074 25 41 W |
| Manor Park | Park | 41 | Morris | 40 53 02 N | 074 25 27 W |
| Maple Lake | Reservoir | 194 | Morris | 41 00 24 N | 074 22 04 W |
| Marcella | Populated Place | 327 | Morris | 40 59 13 N | 074 28 28 W |
| Marcella Cemetery | Cemetery | 292 | Morris | 40 59 18 N | 074 27 13 W |
| Marine Lake | Lake | 218 | Morris | 40 52 56 N | 074 37 17 W |
| Market Street Mission House | Church | 41 | Morris | 40 47 47 N | 074 28 57 W |
| Mase Mountain | Summit | 353 | Morris | 40 57 19 N | 074 34 59 W |
| Mazda Brook Golf Course | Locale | 85 | Morris | 40 51 37 N | 074 24 20 W |
| McClintock Hall | Building | 41 | Morris | 40 45 28 N | 074 25 44 W |
| McDonalds Ponds | Reservoir | 53 | Morris | 40 57 25 N | 074 17 07 W |
| McManus Field | Park | 99 | Morris | 40 46 20 N | 074 25 46 W |
| McVickers Brook | Stream | | Morris | 40 45 33 N | 074 35 20 W |
| Mead Hall | Building | 41 | Morris | 40 45 45 N | 074 25 29 W |
| Meadows Golf Club | Locale | 52 | Morris | 40 54 26 N | 074 16 50 W |
| Meadtown Shopping Center | Locale | 176 | Morris | 41 00 07 N | 074 21 28 W |
| Memorial Middle Shcool | School | 79 | Morris | 40 49 28 N | 074 24 44 W |
| Memorial Park | Park | 41 | Morris | 40 44 29 N | 074 22 48 W |
| Mendham | Populated Place | 187 | Morris | 40 46 33 N | 074 36 03 W |
| Mendham Golf Course | Locale | 155 | Morris | 40 46 43 N | 074 33 49 W |
| Mendham Reservoir | Reservoir | 41 | Morris | 40 48 39 N | 074 36 33 W |
| Mendham Township Elementary School | School | 144 | Morris | 40 47 33 N | 074 34 17 W |
| Mendham Township Middle School | School | 152 | Morris | 40 48 07 N | 074 33 10 W |
| Mendham United Methodist Church | Church | 184 | Morris | 40 46 36 N | 074 35 60 W |
| Mennen | Airport | 118 | Morris | 40 48 50 N | 074 28 24 W |
| Meriden | Populated Place | 179 | Morris | 40 56 50 N | 074 27 28 W |
| Meyersville | Populated Place | 76 | Morris | 40 41 23 N | 074 28 14 W |
| Meyersville Cemetery | Cemetery | 80 | Morris | 40 41 30 N | 074 27 43 W |
| Middle Valley | Populated Place | 156 | Morris | 40 45 38 N | 074 49 14 W |
| Middle Valley Cemetery | Cemetery | 187 | Morris | 40 45 50 N | 074 48 35 W |
| Middle Valley School (historical) | School | 152 | Morris | 40 45 19 N | 074 49 24 W |
| Middletown | Populated Place | 234 | Morris | 40 54 57 N | 074 30 49 W |
| Mill Brook | Populated Place | 262 | Morris | 40 51 52 N | 074 33 27 W |
| Mill Brook | Stream | | Morris | 40 52 48 N | 074 31 33 W |
| Mill Street School (historical) | School | 103 | Morris | 40 48 09 N | 074 29 24 W |
| Millington | Populated Place | 108 | Morris | 40 40 38 N | 074 31 04 W |
| Millington Elementary School | School | 87 | Morris | 40 40 24 N | 074 31 02 W |
| Milltown | Populated Place | 214 | Morris | 40 46 47 N | 074 43 14 W |
| Milton | Populated Place | 252 | Morris | 41 01 17 N | 074 32 09 W |
| Milton Avenue Elementary School | School | 58 | Morris | 40 44 51 N | 074 22 50 W |
| Milton Elementary School | School | 262 | Morris | 41 01 38 N | 074 31 38 W |
| Mine Brook | Stream | | Morris | 40 49 58 N | 074 49 29 W |
| Mine Hill | Populated Place | 252 | Morris | 40 52 40 N | 074 35 38 W |
| Mine Hill Presbyterian Church | Church | 267 | Morris | 40 52 49 N | 074 35 48 W |
| Mine Hill Reservoir | Reservoir | 195 | Morris | 40 50 30 N | 074 48 02 W |
| Mine Hill Reservoir Dam | Dam | 195 | Morris | 40 50 30 N | 074 48 02 W |
| Minisink County Park | Park | 286 | Morris | 40 56 00 N | 074 36 29 W |
| Mirror Pond | Reservoir | 88 | Morris | 40 51 02 N | 074 26 55 W |
| Mitt Pond | Lake | 250 | Morris | 41 01 41 N | 074 30 55 W |
| Monastery of the Most Blessed Virgin Mary of Mount Carmel | Church | 41 | Morris | 40 47 16 N | 074 27 21 W |
| Monroe | Populated Place | 81 | Morris | 40 48 46 N | 074 26 33 W |
| Montville | Populated Place | 96 | Morris | 40 54 53 N | 074 23 02 W |
| Montville Airpark | Airport | 58 | Morris | 40 55 55 N | 074 20 11 W |
| Montville Church | Church | 69 | Morris | 40 54 00 N | 074 22 12 W |
| Montville High School | School | 75 | Morris | 40 53 37 N | 074 21 36 W |
| Moosepac Pond | Reservoir | 244 | Morris | 41 01 34 N | 074 30 13 W |
| Morris Canal | Canal | 67 | Morris | 40 55 35 N | 074 19 24 W |
| Morris Catholic High School | School | 169 | Morris | 40 54 21 N | 074 29 24 W |
| Morris Corporate Center | Locale | 41 | Morris | 40 52 15 N | 074 26 44 W |
| Morris County | Civil | 288 | Morris | 40 50 00 N | 074 31 59 W |
| Morris County Almshouse and Sanatorium (historical) | Hospital | 204 | Morris | 40 49 56 N | 074 30 59 W |
| Morris County Golf Club | Locale | 115 | Morris | 40 47 12 N | 074 26 54 W |
| Morris County Hall of Records | Building | 41 | Morris | 40 47 48 N | 074 29 04 W |
| Morris County Jail | Building | 41 | Morris | 40 47 50 N | 074 29 05 W |
| Morris County Mall Shopping Center | Locale | 41 | Morris | 40 48 33 N | 074 27 29 W |
| Morris Hills High School | School | 210 | Morris | 40 53 24 N | 074 31 46 W |
| Morris Knolls High School | School | 223 | Morris | 40 53 07 N | 074 30 31 W |
| Morris Plains | Populated Place | 119 | Morris | 40 49 18 N | 074 28 52 W |
| Morris Plains Borough Hall | Building | 41 | Morris | 40 49 34 N | 074 28 47 W |
| Morris Plains Community Park | Park | 41 | Morris | 40 49 55 N | 074 28 06 W |
| Morris Plains Post Office | Post Office | 41 | Morris | 40 49 31 N | 074 28 48 W |
| Morris Plains Presbyterian Church | Church | 41 | Morris | 40 49 26 N | 074 28 52 W |
| Morris Street Station | Post Office | 41 | Morris | 40 47 48 N | 074 28 47 W |
| Morris Township Public School (historical) | School | 41 | Morris | 40 49 24 N | 074 29 23 W |
| Morristown | Populated Place | 110 | Morris | 40 47 48 N | 074 28 54 W |
| Morristown Green | Park | 110 | Morris | 40 47 50 N | 074 28 54 W |
| Morristown High School | School | 103 | Morris | 40 48 05 N | 074 29 10 W |
| Morristown Jewish Center | Church | 41 | Morris | 40 48 14 N | 074 28 56 W |
| Morristown Memorial Hospital | Airport | 105 | Morris | 40 47 15 N | 074 27 44 W |