Hi. We could use some help with itinerary for our 4 nite, 3 day trip in late August. We drive in from the east, probably arriving in park mid-afternoon. We stay first three nites at Old Faithful and the last nite at Grant. We have two time/location constraints. Our first full day we are doing the horse ride/cowboy dinner so must be at Roosevelt by 3:30 pm. Our third full day we need to be at Canyon Amphitheater at 4:30 pm. We plan to leave Grant early morning on day 4 to head to GTNP but could leave later in morning if there are nearby things to see. Thanks for your help!