Take the Autopista 57 from Mexico City toward Querétaro, where you will get onto the 45 towards Irapuato. After passing Salamanca, take the León exit I(there’s only one, so don’t miss it!). Continue on until you come to a T with the Irapuato/Guanajuato Highway. Follow the signs to León/Guanajuato. Follow the signs to the Guanajuato Cuota (toll) road—Highway 110.
Stay on the Cuota (toll) road to Guanajuato which ends at the toll booth. As you drive, you’ll pass the General Motors plant on the right (Planta Silao).
At the end of the Cuota road you will pay approximately $27 pesos ($2 US current rate as of 01/03/14). After the toll booth you will come upon a traffic circle. DO NOT TAKE THE FIRST RIGHT. Follow the signs to Guanajuato/Dolores Hidalgo and go around the circle past the Gran Plaza Hotel and get into the center lane. Soon you will pass under a pedestrian bridge and take the exit to Guanajuato. Take this exit to the right. This road leads through a tunnel into Guanajuato. Follow the signs to Dolores Hidalgo.
You’ll travel into town and pass the Hotel Real de Minas on your left, and a park with stone frog statues further up on the right. Pass the park and straight through the next traffic circle and under a large stone arch.
The next left is tricky. The road veers to the right into the underground tunnels. DO NOT GO RIGHT! Instead, go left up a small hill that has an immediate small traffic circle stay to the right around the traffic circle and go into the tunnel. At the end of the tunnel is a T intersection (Alhondiga Street). Take a left to the next traffic circle. Go around the circle - and head up the hill. The signs should all be directing you to Dolores Hidalgo/Camino Real/Valenciana.
At the end of this street is Camino Real. Stay to the right around the hotel and follow the road up the hill to La Valenciana. The road is curvy, so take your time.
Pass through the small plaza and travel further up the hill. You’ll see a sign on the right CIMAT ENTRADA NORTE. Go LEFT onto the little street and take the fork to the right. On your right are the ruins of the Guadalupe Mine, with its great flying buttresses. This short road ends at CIMAT, a large math research center. Turn left when you reach the gate for the CIMAT parking lot.
Casa Estrella is the first property on the right. We share a fence with CIMAT.
IF ALL ELSE FAILS, ask someone, “Disculpe donde está CIMAT?” Once they have pointed the way, you can’t miss us!