Describir: Field study in american geography:

 __   __    _____               _____     ______     ___              
 \ \\/ //  |  ___||   ____     |  ___||  /_____//   / _ \\    ____    
  \   //   | ||__    |    \\   | ||__    `____ `   | / \ ||  |    \\  
  / . \\   | ||__    | [] ||   | ||__    /___//    | \_/ ||  | [] ||  
 /_//\_\\  |_____||  |  __//   |_____||  `__ `      \___//   |  __//  
 `-`  --`  `-----`   |_|`-`    `-----`   /_//       `---`    |_|`-`   
                     `-`                 `-`                 `-`      
 _    _   
| || | || 
| || | || 
| \\_/ || 
 \____//  
  `---`