Driving Directions From Downtown Castle Rock. Estimated Drive Time 15 Mins. Head North On Cantril St Toward 3Rd St Turn Left At The 1St Cross Street Onto 3Rd St Turn Right At The 3Rd Cross Street Onto Wilcox St Turn Right To Merge Onto I-25 N Take Exit 188 For Castle Pines Pkwy Keep Left At The Fork To Continue Toward Castle Pines Pkwy Turn Left Onto Castle Pines Pkwy Turn Left Onto Forest Park Dr Turn Left Onto Forest Ridge Cir Turn Right Onto Timbercrest Ln Turn Right Onto Timbercrest Dr Destination Will Be On The Right