Index of NFS developed trails is one of a group of measures under the rec facilities indicator -- one or more is required. The rec facilities indicator is under the opportunities for primitive and unconfined recreation monitoring question for the solitude or primitive and unconfined recreation quality.
This measure is reported as a single value. The wilderness was designated in 1978, so we constrain our analysis to observations between 1978 and 2020.
The space below will show something interesting, like a graph or a map, about this measure for this reporting period.