Las Piedrotas are a large and impressive set of rock formations set in cow pastures 5km north of town. Most people drive there, but it's an easy, and rewarding 2½- to three-hour return walk along a quiet country lane through dark pine forests, past an abandoned old paper mill and up onto a flower-filled plateau grazed by huge horned cattle.
To get there take Hidalgo westward out of town, following the signs for Chiquilistlán (and some signs for Las Piedrotas). Once you've cleared the edge of town, just follow the road straight ahead. A taxi costs around M$60.
