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Stone description: fine grain
| Wall Number | Country | State | Classification | Source Sort descending |
|---|---|---|---|---|
| 7RB40 | United States | New Hampshire | Granite | Milford |
| 1L1 | United States | Connecticut | Gneiss | Milford |
| 14RA10 | United States | Pennsylvania | Dolomite | Mill Lane Chester Co. |
| 5LA7 | United States | Ohio | Sandstone | Millersburg |
| 12RB33 | United States | Ohio | Limestone | Millersburg |
| 6RA35 | United States | Connecticut | Granite | Millstone Point |
| 1L3 | United States | Connecticut | Granite | Millstone Point |
| 8RA32 | United States | Texas | Sandstone | Milsap |
| 7RB30 | United States | Texas | Sandstone | Milsap |
| 11RA10 | United States | Ohio | Dolomite | Milton Twp. Woods Co. |
| 12RA6 | United States | Wisconsin | Dolomite | Milwaukee |
| 13RA4 | United States | Wisconsin | Dolomite | Milwaukee |
| 9LA16 | United States | Minnesota | Limestone | Minneapolis |
| 14RB8 | United States | Minnesota | Limestone | Minneapolis |
| 14RA29 | Austria | Limestone | Mokritz | |
| 5RB32 | United States | Colorado | Diorite | Monarch |
| 9RA21 | United States | Ohio | Sandstone | Monclava |
| 10LB22 | United States | Massachusetts | Gneiss | Monson |
| 6LA39 | United States | Massachusetts | Gneiss | Monson |
| 14LB17 | United States | Iowa | Dolomite | Monticello |
| 14LB1 | United States | Indiana | Dolomite | Montpelier |
| 13RA26 | Canada | Limestone | Montreal region | |
| 5RB39 | United States | Maryland | Granite | Montrose |
| 6LB23 | United States | North Carolina | Gneiss | Mooresville |
| 5RB23 | United States | North Carolina | Granite | Mooresville |
| 14LB35 | Spain | Limestone | Morata, Saragossa | |
| 6LB38 | Mexico | Tuff | Morelos State | |
| 6LA23 | United States | North Carolina | Gneiss | Morganton Depot. |
| 9RA3 | United States | Colorado | Limestone | Morrison |
| 12RB31 | United States | Pennsylvania | Marble | Morristown |
| 8RA26 | United States | North Carolina | Sandstone | Morrisville |
| 5LA1 | United States | Ohio | Sandstone | Mt. Gilead |
| 5LA19 | United States | Ohio | Sandstone | Mt. Gilead |
| 9RB9 | United States | Iowa | Limestone | Mt. Pleasant |
| 9LB16 | United States | Maryland | Limestone | Mt. Pleasant |
| 6LB28 | United States | New York | Sandstone | Mt. Pleasant |
| 13LB20 | United States | Iowa | Limestone | Mt. Pleasant |
| 14LA20 | United States | Iowa | Limestone | Mt. Pleasant |
| 6RB40 | United States | Maryland | Gneiss | Mt. Royal |
| 14LA14 | United States | Iowa | Dolomite | Mt. Vernon |
| 9RA37 | Spain | Sandstone | Murcia | |
| 9LA14 | Spain | Limestone | Murcia, Murcia | |
| 12RB5 | United States | Tennessee | Limestone | Murfreesborough |
| 9LB4 | United States | North Carolina | Marble | Murphy |
| 13RB37 | United States | Pennsylvania | Limestone | Myerstown |
| 1R3 | United States | Connecticut | Granite | Mystic Bridge |
| 13RB36 | United States | Pennsylvania | Limestone | N. Annville |
| 5LB7 | United States | Ohio | Sandstone | N. Bloomfield |
| 5La35 | United States | Connecticut | Gneiss | N. Bridgeport |
| 5LB1 | United States | Ohio | Sandstone | N. Hampton |
| 13RB41 | United States | Indiana | Limestone | N. Vernon |
| 8RB36 | Scotland | Sandstone | Nairn | |
| 11RB32 | United States | Virginia | Granite | Namozine Dist. |
| 11LA35 | United States | Virginia | Granite | Namozine Dist. |
| 12LB34 | United States | North Carolina | Marble | Nantahala |
| 12RA23 | United States | Tennessee | Limestone | Nashville |
| 9RB1 | Portugal | Limestone | Nazareth, Leiria | |
| 9LA1 | Portugal | Limestone | Nazareth, Leiria | |
| 9RB38 | United States | Oregon | Sandstone | Near Albany |
| 13LB1 | United States | Virginia | Limestone | Near National Bridge |
| 10RA1 | United States | Virginia | Marble | Near National Bridge |
| 11RB27 | United States | Virginia | Granite | Near Richmond |
| 14RA6 | United States | Wisconsin | Dolomite | Neenah |
| 10RA33 | United States | Kansas | Sandstone | Neodesha |
| 9RB43 | Canada | Sandstone | Nepigon Bay, Ontario | |
| 5LB26 | Austria | Granite | Neuhaus | |
| 8RA36 | United States | Missouri | Sandstone | Nevada |
| 5RB35 | United States | Connecticut | Diabase | New Haven |
| 13RA1 | United States | Vermont | Marble | New Haven |
| 9RA5 | United States | Missouri | Limestone | New London |
| 12LB10 | United States | Ohio | Dolomite | New Paris |
| 14RA19 | Australia | Marble | New South Wales | |
| 14LA19 | Australia | Marble | New South Wales | |
| 9RB16 | United States | Maryland | Marble | New Windsor |
| 7LB40 | United States | New Jersey | Sandstone | Newark |
| 6LA20 | United States | Ohio | Sandstone | Newark |
| 8LA42 | United States | New Jersey | Sandstone | Newark |
| 5RA41 | United States | South Carolina | Granite | Newberry Co. |
| 5LB2 | United States | Ohio | Sandstone | Newburgh |
| 13LB12 | United States | New Jersey | Dolomite | Newton |
| 13LA40 | United States | Ohio | Limestone | Newtonville |
| 5RA46 | United States | Rhode Island | Granite | Niantic |
| 6Lb5 | United States | Pennsylvania | Sandstone | Nicholson |
| 8RA4 | United States | Tennessee | Limestone | Nolensville Pike |
| 10LA6 | United States | Tennessee | Limestone | Nolensville Pike |
| 5B | United States | Maine | Granite | North Jay |
| 10LB25 | United States | Massachusetts | Gneiss | Northfield |
| 1L4 | United States | Connecticut | Granite | Norwalk |
| 5La2 | United States | Ohio | Sandstone | Norwalk |
| 12LB2 | United States | North Carolina | Dolomite | Nottla |
| 7ra10 | United States | Arkansas | Marble | Nr. Batesville |
| 12RA34 | United States | Indiana | Limestone | Oakalla |
| 14RB12 | United States | Indiana | Limestone | Oakdale |
| 9RB37 | United States | Oregon | Sandstone | Oakland |
| 6LA38 | Mexico | Tuff | Oaxaca State | |
| 6RB37 | Mexico | Tuff | Oaxaca State | |
| 11RA39 | United States | Tennessee | Conglomerate | Ocoee River Polk Co. |
| 5LB30 | United States | Georgia | Granite | Ogelsby |
| 6LB3 | United States | Pennsylvania | Sandstone | Oil City |
| 6LA28 | United States | New York | Sandstone | Olean |