| URL | Priority | Change frequency | Last modified (GMT) |
|---|---|---|---|
| https://www.petrifiedforestfieldinstitute.org/event/dig-fossils-for-a-day-aug-6-16/ | 60% | Monthly | 2016-05-13 00:14 |
| https://www.petrifiedforestfieldinstitute.org/event/dig-fossils-for-a-day-may-21-16/ | 60% | Monthly | 2016-05-13 00:14 |
| https://www.petrifiedforestfieldinstitute.org/event/extended-day-hike-living-with-the-land-may-7-16/ | 60% | Monthly | 2016-05-13 00:14 |