some numbers crunched

Number of sisters: 3
Number of friends: 2
Total days: 20
Total miles: 2189
Average mpg: 20 mi/gal
Average price for gasoline: $3.21/gal
Gasoline cost: $350
Amount for rental SUV (incl extra driver): $900
Amount for food & drink: $2200
Amount for lodging: $2000
Average cost per sister: $1900

Number of State Parks visited: 2
Number of National Forests visited: 4
Number of National Parks/Monuments visited: 12
Number of trails hiked/climbed/waded/scrambled: don't want to think about it, still traumatized

Cost for 3 wonderful sisters & assorted friends: Priceless.