1. Preheat oven to 450 degrees Fahrenheit. Place crown roast of lamb on a large baking sheet. Brush lamb all over with olive oil. Rub the Tierra Sur Smoked Meat Rub all over the lamb. Cover bones loosely with a sheet of foil.
2. Roast the lamb until an instant-read thermometer inserted into thickest part of the lamb registers 125 to 130 degrees Fahrenheit for rare, about 20 minutes (or 130 to 135 degrees Fahrenheit for medium-rare, about 30 minutes; or 135 to 140 degrees Fahrenheit for medium, about 35 minutes).