Oh, Ranger! Story Tour Video Gallery
Rangers usually work 40 hours a week with frequent overtime and
weekend work in the summer when the use of the parks increases. 
Nature Trails The bosque, or riverside forest, features two miles of nature trails that wind through tall cottonwoods and past willow thickets and open sand flats alongside the Rio Grande. Birdwatching During the fall and winter months, sandhill cranes, Canada geese, and several types of ducks take advantage of this peaceful pitstop. ...
READ MOREDesert Alive! Every April, Rockhound State Park hosts “Desert Alive!,” a springtime celebration of the Chihuahuan Desert and the rocks, plants and animals found in the park. Join nature walks, take in displays and exhibits and learn about natural and cultural history of the region. Hiking The hiking trails at the park ...
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Most of the bus services we're familiar with leave SLC in the morning - around 10am. You might be able to get a private trip to leave later in the day, depending on how many are in your party.
Here are a few links to check out and perhaps worth a call to check on your exact dates:
http://www.bundubus.com/grand_canyon_transportation_schedule.php
http://www.yellowstonenationalparktours.com/yellowstone_tours.htm
