The 2250m-long granite section of wall at MUTIANYU, 90km northeast of Beijing in Huairou County, dates from Ming dynasty remains, built upon an earlier Northern Qi dynasty conception, It was developed as a decoy alternative to badaling and is, on the whole, a less commercial experience, despite some motivated hawking and tourist clutter, the stretch of wall is notable for its numerous Ming dynasty guard towers and stirring views. The wall is also equipped with a cable car. October is the best month to visit, for the autumn colors of the trees that envelop the surrounding countryside.