Madrid environmental, sporting, leisure and cultural interest. Madrid Río provides a link with other green spaces in the city such as Casa de Campo and the Linear Park of the Manzanares River. The main landscaped area in Madrid Río is the Arganzuela Park, covering 23 hectares where pedestrian and cycling routes cover the whole park. The Madrid Río cycling network covers some and is linked to other bike routes. To the north, Madrid Rio connects to the Senda Real, the Green Ring for Cyclists and the E 7 (GR 10) trail, which goes as far as the Sierra de Guadarrama mountain
New Madrid, Missouri the United States. New Madrid lies far from any plate boundaries, but it is on the New Madrid Seismic Zone. The major earthquake was felt as far away as the East Coast. During the Civil War, the Battle of Island Number Ten took place on the Mississippi River near New Madrid. In the antebellum period, this fertile floodplain area was developed for cotton plantations, based on the labor of enslaved African Americans. They were emancipated after the Civil War and worked to make new lives. As whites struggled to re-establish dominance after the Reconstruction era, they intimidated and attacked blacks