we're moving in july with two small children from LA to denver. i've mapped a trip that takes us on the i-15 to the 1-70... but am wondering if you all had suggestions about where to stop along the way. the kids are one & three, so we'll need lots of stops to burn off energy. open parks, kid friendly places... also, any suggestions on where to stay along the way? mapquest says it's a 15 hour drive. so we're thinking of breaking it up into 3 days of 5 hours in the car... i'm thinking the first stop will be vegas.