Oh, Ranger! Story Tour Video Gallery

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

The South Rim of the Grand Canyon is open 365 days a year.  All visitor services: camping, lodging, and restaurants are available year round. Reservations are strongly recommended during the busy summer season.

Some facilities are closed during the winter depending on the severity of the weather.  For more information as you get closer to the trip you can call the General Visitor Information Line at (928) 638-7888

http://www.ohranger.com/grand-canyon

Acadia National Park in fact does not have any structured lodging within its boundaries.  That said, one of the things that makes the park (and the towns on Mount Desert Island) so special, is the interconnectedness between the community, its resources and the park itself.

The Bar Harbor Chamber of Commerce is the absolute best resource for ALL things Acadia. 

http://www.barharborinfo.com/where_to_stay/

Go to the IDNR website:
http://www.in.gov/dnr/
and look around there.  It is a big organization, so you have to know what kind of job you want and are qualified for - maintenance, enforcement, education, etc.  Indiana government is facing budget shortfalls like most states, so jobs may be in short supply.  As for county jobs, you will have to call or visit the particular county website  - counties do not coordinate job openings with each other.  There is no substitue for getting to know the local workers personally, and volunteering for your favorite organization is a great way to get your foot in the door.  Park agencies always need volunteer help.

Bob Dispenza
Allen County Parks
Fort Wayne, IN

As Kristine pointed out, it's hard to predict, but

At that time last year, most locations in the park had a few inches of snow. I'd plan for cold and snow, but have some lighter clothing with you as well, just in case it stays warm.

Click this link! 

The full-set of guides comes to you in a box for the cost of shipping and handling ($19.99).  Enjoy!

If you stay at an in park resort managed by Xanterra (www.xanterra.com), such as the lodges or cabins within Yellowstone, the APN/"Oh Ranger!" guidebook is a free part of the guest services directory you'll find in your room or cabin. This isn't very helpful if you're planning a trip in advance, of course, so I highly recommened spending the $20 and ordering the whole set.

I assume this applies at all Xanterra managed properties, and possibly at the other parks whose services are managed by others (like Delaware North or Forever Resorts, etc), but I can't be 100% sure.