Found 45 incidents matching the year '1981'.
| Date | Cave | State | Country | Category | Flags | |
|---|---|---|---|---|---|---|
| Dec. 28, 1981 1981-12-28 | Santa Fe Blowhole | New Mexico | United States of America | Cave | View | |
| Dec. 21, 1981 1981-12-21 | Knox County Sinkhole | Tennessee | United States of America | Cave | View | |
| Dec. 12, 1981 1981-12-12 | Clover Hollow Cave | Virginia | United States of America | Cave | View | |
| Dec. 1, 1981 1981-12-01 | Roppel Cave | Kentucky | United States of America | Cave | View | |
| Nov. 28, 1981 1981-11-28 | Trapdoor Cave | Indiana | United States of America | Cave | View | |
| Nov. 11, 1981 1981-11-11 | Green Valley Cave | Alabama | United States of America | Cave | View | |
| Oct. 10, 1981 1981-10-10 | Lost World Caverns | West Virginia | United States of America | Cave | View | |
| Oct. 10, 1981 1981-10-10 | McFail's Cave | New York | United States of America | Cave | View | |
| Sept. 26, 1981 1981-09-26 | Bull Shoals Lake Cave | Arkansas | United States of America | Cave Diving | View | |
| Sept. 26, 1981 1981-09-26 | Ward-Gregory Cave | New York | United States of America | Cave | View | |
| Sept. 22, 1981 1981-09-22 | Blowing Cave | Alabama | United States of America | Cave | View | |
| Sept. 19, 1981 1981-09-19 | McFail's Cave | New York | United States of America | Cave | View | |
| Sept. 19, 1981 1981-09-19 | Grassy Cove Saltpeter Cave | Tennessee | United States of America | Cave | View | |
| Sept. 17, 1981 1981-09-17 | Lost Indian Cave | Texas | United States of America | Cave | View | |
| Sept. 1, 1981 1981-09-01 | Fisher Ridge System | Kentucky | United States of America | Cave | View | |
| Aug. 22, 1981 1981-08-22 | Fulford Cave | Colorado | United States of America | Cave | View | |
| Aug. 12, 1981 1981-08-12 | Big Springs Cave | West Virginia | United States of America | Cave | View | |
| Aug. 1, 1981 1981-08-01 | Bear Plunge Pit | Indiana | United States of America | Cave | View | |
| July 30, 1981 1981-07-30 | San Miguel Island Sea Cave | California | United States of America | Cave Diving | View | |
| July 21, 1981 1981-07-21 | Sloan's Valley Cave | Kentucky | United States of America | Cave | View | |
| July 21, 1981 1981-07-21 | Sloan's Valley Cave | Kentucky | United States of America | Cave | View | |
| July 13, 1981 1981-07-13 | Hell Hole Cave | West Virginia | United States of America | Cave | View | |
| July 13, 1981 1981-07-13 | Harry Hole Hole | British Columbia | Canada | Cave | View | |
| July 5, 1981 1981-07-05 | Bigfoot Cave | California | United States of America | Cave | View | |
| July 1, 1981 1981-07-01 | Craddock Springs | Kentucky | United States of America | Cave Diving | View | |
| June 14, 1981 1981-06-14 | Cathedral Springs Cave (Robin's Rift) | Virginia | United States of America | Cave | View | |
| June 6, 1981 1981-06-06 | Sinks of the Roundstone | Kentucky | United States of America | Cave | View | |
| May 23, 1981 1981-05-23 | Devil's Eye Spring | Florida | United States of America | Cave Diving | View | |
| May 16, 1981 1981-05-16 | Nutt Cave | West Virginia | United States of America | Cave | View | |
| May 2, 1981 1981-05-02 | Organ Cave | West Virginia | United States of America | Cave | View | |
| April 25, 1981 1981-04-25 | Clover Hollow Cave | Virginia | United States of America | Cave | View | |
| April 22, 1981 1981-04-22 | Santa Cruz Sea Cave | California | United States of America | Other | View | |
| April 19, 1981 1981-04-19 | Pulley Cave | Tennessee | United States of America | Cave | View | |
| April 13, 1981 1981-04-13 | Cool Springs Cave | Kentucky | United States of America | Cave | View | |
| April 12, 1981 1981-04-12 | Priest's Cabin Hollow Cave | Minnesota | United States of America | Cave | View | |
| April 11, 1981 1981-04-11 | Ebenezer Cave | Tennessee | United States of America | Cave | View | |
| April 4, 1981 1981-04-04 | Porter's Bluff Cave | Tennessee | United States of America | Cave | View | |
| March 16, 1981 1981-03-16 | Patton Cave | West Virginia | United States of America | Cave | View | |
| March 14, 1981 1981-03-14 | Lee Cave | Kentucky | United States of America | Cave | View | |
| March 8, 1981 1981-03-08 | I-81 Cave | Virginia | United States of America | Cave | View | |
| March 1, 1981 1981-03-01 | Buckner Cave | Indiana | United States of America | Cave | View | |
| March 1, 1981 1981-03-01 | El Retiro Pit | Guatemala | Cave | View | ||
| March 1, 1981 1981-03-01 | Sullivan Cave | Indiana | United States of America | Cave | View | |
| Feb. 15, 1981 1981-02-15 | Roppel Cave | Kentucky | United States of America | Cave | View | |
| Jan. 21, 1981 1981-01-21 | Pit near Huautla de Jimenez | Oaxaca | Mexico | Cave | View |