| Trail Name | First Name | Last Name | Date Taken | |
|---|---|---|---|---|
| Underpants | Brandon | Stone | 2003-10-21 | View |
| Underpass | Chris | Caldwell | 2018-07-07 | View |
| Undertow | Steven | Will | 2018-03-30 | View |
| Undetermined | Allen | Campbell | 2003-06-11 | View |
| Unemployed | Mary Ann | Vogt | 2001-06-18 | View |
| UnFinished | Jeff | Mansfield | 2004-05-19 | View |
| Unforgiven 2 | 2007-10-08 | View | ||
| Ungerwhere | Ryan | Unger | 2014-06-21 | View |
| Unhinged | Anda | Bruinsma | 2015-05-23 | View |
| Unhurry | Kev | Murray | 2018-08-16 | View |