If you choose to have a campfire, you are choosing a very large responsibility. Your first step is to choose a location for your fire. If there is an existing fire ring, use it. If it is in a bad location, move it to a better location and clean up all remnants in its original location. Never place a campfire within the radius of the largest branches on a tree.
Fire can actually travel through the tree's root system and cause a forest fire.
Never build a fire close to a rock or other natural object where the fire will scorch the object and leave lasting impacts of your visit. Finally, remember to clean up after your fire. The intent is to get other campers to use the same fire ring. Cleaning up the fire ring of any food waste and trash, burning wood completely and scattering the cooled coals and ashes will make it more likely that it will be used again. This entire segment of trail passes through the Holy Cross Wilderness, mountain biking is therefore not permitted.