IMO, and I could be wrong, but the drive from Minn/St Paul, other than the Mall of America in Minneapolis, has nothing of interest until you get to the Badlands, Custer STate Park, Crazy HOrse, Mt Rushmore area. Deadwood SD for a day and night, I found to be of interest.
Sinoatrial node is located at the junction of the superior vena cava with the right atrium.
Your heart's electrical system is made up of three main parts: 1  The sinoatrial (SA) node, located in the right atrium of your heart. 2  The atrioventricular (AV) node, located on the interatrial septum close to the tricuspid valve. 3  The His-Purkinje system, located along the walls of your heart's ventricles.