| Voyage de 1994 |
| Arizona |
|
| Californie |
|
| Idaho |
|
| Nevada |
|
| Utah |
|
| Wyoming |
| Voyage de 1988 |
|
| Voyage de 1995 |
|
| Voyage de 1997 |
|
| Voyage de 97-98 |
|
| Voyage de 98-99 |
|
| Séjour de 2001 |