It further concludes that much of this historic route appears potentially eligible for the National Register of Historic Places. Historic routes also connected Santa Clara Canyon, Valle Toledo, Vallecitos and Valle Grande. Before historic routes are closed, rerouted or physically erased:How was their historic significance evaluated? Why are some portions of these historic routes being physically removed while others are simply closed to public use? Before more historic routes disappear, shouldn’t the public understand exactly what is being removed, why it is being removed, and what alternatives were considered?