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Stone description: porous
| Wall Number Sort descending | Country | State | Classification | Source |
|---|---|---|---|---|
| 7RB30 | United States | Texas | Sandstone | Milsap |
| 7RB36 | United States | Nevada | Sandstone | Carson City |
| 7RB39 | United States | New Jersey | Sandstone | Avondale |
| 7RB42 | United States | Michigan | Sandstone | Marquette |
| 7RQ | United States | Ohio | Sandstone | Kipton |
| 7WE | United States | South Dakota | Sandstone | Hot Springs |
| 8C | United States | Indiana | Limestone | Bloomington |
| 8EE | United States | Ohio | Sandstone | Amherst |
| 8L48 | United States | Ohio | Sandstone | Berea |
| 8LA20 | United States | Ohio | Sandstone | Portsmouth |
| 8LA21 | United States | Ohio | Sandstone | Steubensville Jefferson Co. |
| 8LA24 | United States | North Carolina | Sandstone | Sanford |
| 8LA26 | United States | North Carolina | Sandstone | Wadesboro |
| 8LA31 | United States | Kentucky | Sandstone | Johnson Co. |
| 8LA35 | United States | Connecticut | Sandstone | E. Haven |
| 8LA36 | United States | Missouri | Sandstone | Clinton |
| 8LA37 | United States | Missouri | Sandstone | Warrensburg |
| 8LA39 | United States | Kansas | Sandstone | Oswego |
| 8LA42 | United States | New Jersey | Sandstone | Newark |
| 8LA43 | United States | Montana | Sandstone | Columbus |
| 8La47 | United States | New Mexico | Sandstone | Las Vegas |
| 8LB20 | United States | Ohio | Sandstone | Berea |
| 8LB21 | United States | Ohio | Sandstone | Steubensville Jefferson Co. |
| 8LB28 | United States | New York | Sandstone | Hulberton |
| 8LB31 | United States | Kentucky | Sandstone | Cloveport |
| 8Lb32 | United States | Texas | Sandstone | Riverside |
| 8LB33 | United States | Colorado | Sandstone | Canon City |
| 8LB34 | United States | Minnesota | Sandstone | Mendota |
| 8LB35 | United States | Connecticut | Sandstone | Manchester |
| 8LB36 | Scotland | Sandstone | Thurso | |
| 8LB37 | United States | Missouri | Sandstone | Rockville |
| 8LB38 | United States | Arizona | Sandstone | Yavapai Co. |
| 8LB39 | United States | West Virginia | Sandstone | Wheeling |
| 8LB47 | United States | New Mexico | Sandstone | Valencia Co. |
| 8r48 | United States | Ohio | Sandstone | Berea |
| 8RA16 | United States | Indiana | Limestone | Ellettsville |
| 8RA20 | United States | Ohio | Sandstone | Elyria |
| 8RA21 | United States | Ohio | Sandstone | Brooklyn |
| 8RA23 | United States | Massachusetts | Sandstone | E. Long Meadow |
| 8RA24 | United States | North Carolina | Sandstone | Durham |
| 8RA25 | United States | North Carolina | Sandstone | Egypt |
| 8RA26 | United States | North Carolina | Sandstone | Morrisville |
| 8RA32 | United States | Texas | Sandstone | Milsap |
| 8RA33 | United States | Colorado | Sandstone | Longmont |
| 8RA36 | United States | Missouri | Sandstone | Nevada |
| 8RA37 | United States | Missouri | Sandstone | Howard Co. |
| 8RA4 | United States | Tennessee | Limestone | Nolensville Pike |
| 8RA40 | United States | New Jersey | Sandstone | Belleville |
| 8RA42 | United States | Oregon | Basalt | Clackamas Station Clackamas Co |
| 8RA44 | United States | Michigan | Sandstone | L'Anse |
| 8RA46 | United States | Washington | Sandstone | Bellingham |
| 8RB15 | United States | Utah | Limestone | Ephriam |
| 8RB16 | United States | Wisconsin | Limestone | Madison |
| 8RB18 | United States | Pennsylvania | Sandstone | Fayette Station Fayette Co. |
| 8RB20 | United States | Ohio | Sandstone | Middleburg Twp. Cuyahoga Co. |
| 8RB21 | United States | Ohio | Sandstone | Amherst |
| 8RB32 | United States | Texas | Sandstone | Back Bone Valley |
| 8RB33 | United States | Colorado | Sandstone | Fort Collins |
| 8RB35 | United States | Connecticut | Sandstone | Portland |
| 8RB36 | Scotland | Sandstone | Nairn | |
| 8RB39 | United States | New Jersey | Sandstone | Little Falls |
| 8RB40 | United States | New Jersey | Sandstone | Belleville |
| 8RB42 | United States | Montana | Sandstone | Columbus |
| 8RB44 | United States | Michigan | Sandstone | Isle Royale |
| 8RB45 | United States | Wisconsin | Sandstone | Packwaukee |
| 8RB46 | United States | Washington | Sandstone | Tenino |
| 8RQ | United States | Ohio | Sandstone | McDermont |
| 9EE | United States | Ohio | Sandstone | Glenmont |
| 9LA19 | United States | Pennsylvania | Sandstone | Curwensville |
| 9LA21 | United States | Ohio | Sandstone | Lancaster |
| 9LA22 | United States | Ohio | Sandstone | Logan |
| 9LA25 | United States | North Carolina | Sandstone | Raleigh |
| 9LA26 | United States | North Carolina | Sandstone | Raleigh |
| 9LA27 | Australia | Sandstone | New South Wales | |
| 9La32 | United States | Texas | Sandstone | Range |
| 9La34 | United States | West Virginia | Sandstone | Kingwood |
| 9LA36 | United States | New Jersey | Conglomerate | May's Landing Atlantic Co. |
| 9LA38 | United States | Indiana | Sandstone | Cannelton |
| 9LA39 | United States | Indiana | Sandstone | French Lick Twp. |
| 9LA40 | United States | Illinois | Sandstone | Pinckneyville |
| 9LA41 | United States | Illinois | Sandstone | Chester |
| 9LA42 | United States | Illinois | Sandstone | Chester |
| 9LA44 | United States | Florida | Sandstone | Suwannee River |
| 9LA5 | United States | Missouri | Limestone | Barrett's Station |
| 9Lb17 | United States | Pennsylvania | Sandstone | Homewood |
| 9LB21 | United States | Ohio | Sandstone | Twinsburg |
| 9LB22 | United States | Ohio | Sandstone | Mansfield |
| 9LB23 | United States | Ohio | Sandstone | Marietta |
| 9LB26 | Australia | Sandstone | New South Wales | |
| 9LB27 | Australia | Sandstone | New South Wales | |
| 9Lb34 | United States | Oregon | Sandstone | Jacksonville |
| 9Lb37 | United States | Oregon | Sandstone | Forest Grove |
| 9LB40 | United States | Indiana | Sandstone | French Lick Twp. |
| 9LB41 | United States | Indiana | Sandstone | Williamsport |
| 9LB43 | United States | Washington | Sandstone | Tenino |
| 9Lb44 | United States | Wyoming | Sandstone | Laramie |
| 9RA12 | United States | Iowa | Limestone | Iowa City |
| 9RA18 | United States | Pennsylvania | Sandstone | Meadville |
| 9RA19 | United States | Pennsylvania | Sandstone | Franklin |
| 9RA20 | United States | Pennsylvania | Sandstone | Uniontown |