| | Acc. No. | Year | Location | County | Observers |
| 2006-128 | 2006 |
Lamar
| Prowers | Jane Stulp |
| 2012-151 | 2010 |
Colorado National Monument
| Mesa | Matt Fraker |
| 2010-115 | 2010 |
private property
| La Plata | Susan Allerton, James Beatty |
| 2011-027 | 2011 |
Colorado National Monument
| Mesa | John Drummond, Peter Gent, Bill Kaempfer, Bill Maynard, Ric Olson, Brandon Percival, Nathan Pieplow, Bill Schmoker |
| 2012-152 | 2012 |
Colorado National Monument
| Mesa | Larry Arnold, Cheryl Teuton, Mike Henwood |
| 2012-069 | 2012 |
Cordova Pass Road
| Huerfano | Susan Craig |
| 2025-025 | 2025 |
Mesa Verde NP
| Montezuma | Luke Pheneger, Coen Brenda Dexter Wright, Coen Dexter |