Great area with some really fun singletrack with some rocks scattered around. There are great views from Poets Seat and all along the trails. The red trail in Rocky Mountain park is a fast fun ride about 2 miles long. Watch out for some dead ends. Awesome ride!
Review: Not even close to 30 miles. Maybe 10 total if you know them all and put a loop together maximizing all the trials. Fun trails though. Lots of off camber stuff to the east of the Poet Seat Tower.