1850 Atlas
| Name | What | Place | Pop | Other |
| Mount Nebo | PO | Lancaster Co, PA | ||
| Mount Nebo | PO | Surry Co, NC | ||
| Mount Nebo | PO | Williamson Co, TN | ||
| Mount Niles | PO | St Clair Co, AL | ||
| Mount Olive | PO | Clermont Co, OH | ||
| Mount Olive | PO | St Mary's Co, MD | ||
| Mount Olive | PO | Izard Co, AR | ||
| Mount Olivet | PO | Bracken Co, KY | ||
| Mount Palatine | PO | Putnam Co, IL | ||
| Mount Parthenon | PO | Newton Co, AR | ||
| Mount Perry | PO | Perry Co, OH | ||
| Mount Pelia | PO | Weakley Co, TN | ||
| Mount Pinson | PO | Jefferson Co, AL | ||
| Mount Pinson | PO | Jackson Co, AR | ||
| Mount Pinson | PO | Madison Co, TN | ||
| Mount Pisgah | PO | Alexander Co, NC | ||
| Mount Pisgah | PO | La Grange Co, IN | ||
| Mount Pisgah | PO | Clermont Co, OH | ||
| Mount Pleasant | T | Westchester Co, NY | 3,223 | |
| Mount Pleasant | PV | Alexandria twp, Hunterdon Co, NJ | water by Hakehokakee creek | |
| Mount Pleasant | B | Tioga Co, PA | ||
| Mount Pleasant | T | Adams Co, PA | 1,614 | water by Conewago creek |
| Mount Pleasant | PT | Westmoreland Co, PA | 3,110 | water by Big Sewickly & Jacobs creeks |
| Mount Pleasant | T | Columbia Co, PA | 708 | |
| Mount Pleasant | T | Wayne Co, PA | 1,551 | water by head waters of Lackawaxen, Dyberry & Great Equimink creeks |
| Mount Pleasant | T | Washington Co, PA | ||
| Mount Pleasant | PV | Frederick Co, MD | ||
| Mount Pleasant | PV | Spottsylvania Co, VA | ||
| Mount Pleasant | PO | Monroe Co, AL | ||
| Mount Pleasant | PT | Jefferson Co, OH | 1,847 | |
| Mount Pleasant | PV | Oakland Co, MI | ||
| Mount Pleasant | PV | Cabarras Co, NC | ||
| Mount Pleasant | PV | Maury Co, TN | ||
| Mount Pleasant | PV, CH | Martin Co, IN | seat of justice, water by east fork of White river | |
| Mount Pleasant | PO | Union Co, IL | ||
| Mount Pleasant | T | Scotland Co, MO | 801 | |
| Mount Pleasant | T | Barry Co, MO | ||
| Mount Pleasant | PV, CH | Henry Co, IA | 758 | seat of justice, water by Big creek |
| Mount Pleasant | PO | Titus Co, TX | ||
| Mount Pleasant | PO | Talbot Co, GA | ||
| Mount Pleasant | PO | Lawrence Co, MO | ||
| Mount Pleasant | PO | Saratoga Co, NY | ||
| Mount Pleasant | PO | Racine Co, WI | ||
| Mount Pleasant | PO | Greene Co, WI | ||
| Mount Pleasant Mills | PO | Perry Twp, Union Co, PA | ||
| Mount Polk | PO | Benton Co, AL | ||
| Mount Prospect | PO | Crawford Co, IN | ||
| Mount Prospect | PO | Whitesides Co, IL | ||
| Mount Pulaski | PO | Sangamon Co, IL | ||
| Mount Rock | PO | Cumberland Co, PA | ||
| Mount Rose | PO | Mercer Co, NJ | ||
| Mount Salem | PO | Kanawha Co, VA | ||
| Mount Salem | PO | Sussex Co, NJ | ||
| Mount Savage | PO | Alleghany Co, MD | ||
| Mount Savage | PO | Carter Co, KY | ||
| Mount Serrene | PO | Barbour Co, AL | ||
| Mount Sidney | PV | Augusta Co, VA | ||
| Mount Sinai | PO | Suffolk Co, Long Island, NY | ||
| Mount Solon | PO | Augusta Co, VA | ||
| Mount Sterling | PV | Pleasant twp, Madison Co, OH | ||
| Mount Sterling | PT | Muskingum Co, OH | ||
| Mount Sterling | PV, CH | Montgomery Co, KY | seat of justice, water by tributary of south fork of Licking river | |
| Mount Sterling | PV, CH | Brown Co, IL | seat of justice, water by tributary of Crooked creek | |
| Mount Sterling | T | Pettis Co, MO | ||
| Mount Sterling | PV | Choctaw Co, AL | water by Shuckeba creek | |
| Mount Sterling | PO | Crawford Co, WI | ||
| Mount Sterling | PO | Switzerland Co, IN | ||
| Mount Sumner | PO | Jo-Daviess Co, IL | ||
| Mount Surprise | PO | Luzerne Co, PA | ||
| Mount Sylvan | PO | Lafayette Co, MS | ||
| Mount Tabor | T | Rutland Co, VT | 308 | water by headwaters of Otter creek |
| Mount Tabor | PV | Union dist, SC | ||
| Mount Tabor | PV | Monroe Co, IN | water by Bean Blossom creek | |
| Mount Tirzah | PO | Person Co, NC | ||
| Mount Ulla | PO | Rowan Co, NC | ||
| Mount Union | PO | Huntington Co, PA | ||
| Mount Union | PV | Stark Co, OH | ||
| Mount Upton | PV | Guilford twp, Chenango Co, NY | water by Unadilla river | |
| Mount Vale Springs | PO | Blount Co, TN | ||
| Mount Vernon | PT | Kennebec Co, ME | 1,479 | |
| Mount Vernon | PT | Hillsborough Co, NH | 722 | water by a tributary of Souhegan river |
| Mount Vernon | PV | Chester Co, PA | ||
| Mount Vernon | not listed | Fairfax Co, VA | former residence & last resting place of Washington, water by Potomac river | |
| Mount Vernon | PV, CH | Montgomery Co, GA | seat of justice | |
| Mount Vernon | PV | Mobile Co, AL | ||
| Mount Vernon | PV, CH | St Francis Co, AR | seat of justice | |
| Mount Vernon | PO | Monroe Co, TN | ||
| Mount Vernon | PV, CH | Rock Castle Co, KY | seat of justice | |
| Mount Vernon | PV, CH | Knox Co, OH | 3,711 | seat of justice, water by Vernon river or Owl creek |
| Mount Vernon | PV | Macomb Co, MI | ||
| Mount Vernon | PV, CH | Posey Co, IN | seat of justice, water by Ohio river | |
| Mount Vernon | PV, CH | Jefferson Co, IL | ||
| Mount Vernon | PV | Lawrence Co, MO | 1,579 | |
| Mount Vernon | PO | Rowan Co, NC | ||
| Mount Vernon | PO | Linn Co, IA | ||
| Mount View | PO | Davidson Co, TN | ||
| Mount View | PO | Benton Co, MO | ||
| Mount Vinco | PO | Buckingham Co, VA | ||
| Mount Vision | PV | Laurens twp, Otsego Co, NY | ||
| Mount Warren | PO | Weakley Co, TN | ||
| Mount Washington | T | Berkshire Co, MA | 357 | water by branch of Ameram creek |
| Mount Washington | PO | Urbanna twp, Steuben Co, NY | ||
| Mount Washington | PV | Bullitt Co, KY | ||
| Mount Washington | PO | Hamilton Co, OH | ||
| Mount Welcome | PO | Clay Co, KY | ||
| Mount Willing | PO | Orange Co, NC | ||
| Mount Willing | PV | Edgefield dist, SC | water by a tributary of Little Saluda river | |
| Mount Willing | PV | Lowndes Co, AL | water by Cedar creek | |
| Mount Willing | PO | East Feliciana parish, LA | ||
| Mount Yonah | PO | Habersham Co, GA | ||
| Mount Zion | PO | Lebanon Co, PA | ||
| Mount Zion | PO | Spartanburgh dist, SC | ||
| Mount Zion | PV | Hancock Co, GA | ||
| Mount Zion | PO | Campbell Co, VA |