Reference is made to the description of a fire in dense forest on the eastern slope. When such fires are assisted by violent winds they travel with great rapidity, and while the wind continues efforts to subdue them are ineffectual. As has already been mentioned in a previous part of this report, the object of organization against fire should be to reach the scene of a conflagration before it has had time to gather strength. Trails, therefore, are of the first importance. Water for irrigation is of comparatively little importance except in the eastern part of this reserve.
Floods are dangerous, and the protection of the mountain slopes is required on their account.
Mining is not known to have reached any development, nor to show promise for the future. Except in the vicinity of Detroit, where the agricultural lands within the reserve are practically all taken up, the climate usually forbids development of this kind within the boundaries. No special measures are required. About one-third of the sheep pastured within the reserve occupy ranges on the western slope. Still more than those on the east, these bands depend for their livelihood on areas which have been cleared by fire, and from which the presence of the sheep excludes all but the most meagre reproduction.