Salmon skin isn't as controversial ... it's less likely to fall apart on the grill -- as opposed to barbecuing it skinless, which means you may want to use foil to keep everything in one piece.
Fire up your grill to a medium-low heat. I did this heat while making Grilled Salmon with the asparagus; I didn’t want to cook hot. Spread your asparagus out on the tin foil. You will not want them ...
Pinch the ends closed, and fold once or twice to seal tightly. Move the coals to one side of the grill. Transfer the foil packets to the grill away from hot coals, cover the grill, and cook for 15 ...