Hello Bob (and Mick)
BTW, nice photos Mick! Bob, Lake powell is on pg 3 of Mick's photos.
Have been looking at your itinerary Bob, you're on the SUAPLB - right?
Na Parks, Mt Rushmore and Little Big Horn? I believe what is offered on that tour (don't quote me - things change!) is an approx half hour flight over the canyon - but not landing in the canyon. Not sure you would have time to do more as it looks as though you're moving on to Lake Powell later that afternoon...
The heli flight over the canyon though is not to be missed! Truly amazing scenery... I see Bryce and Zion are on your itinerary as well... both beautiful but Zion's my favorite. There is a slot canyon at Zion as well, very different from upper Antelope, but interesting the same. It's called "The Narrows" on the Virgin River. (Shuttle stop Temple of Sinawava). You'd have to be quick, there is approx a mile walk on paved path until you reach the narrows. You must ask at the lodge if it's advised to go into the narrows - the park rangers can tell you if it's too dangerous that day. (or if you would need waders!) All the trails are fab - hard decisions! Just thinking about this makes me want to go back! Don't do as many tours there anymore as I now live in Italy.
Really good websites for many places on your tour:
http://www.nps.gov/index.htm
Just select by state what you are interested in. Excuse the lengthy reply, but I know you like to make the most of it from your posts.
Hope this helps and that you have a fab holiday!
Happy Trails,
Lisa