- Metric Name: Trail Density - Data Vintage: 2023 - Unit Of Measure: km/km2 of trails This dataset represents the density of trails across the landscape, measured as km/km2 of trails. The information was derived from the OpenStreetMap data and includes footways, cycleways, pedestrian paths, service roads, paths, tracks, and unclassified features. Based on local knowledge, inclusion of these different categories was required to capture the majority of popular hiking destinations including authorized and unauthorized routes. - Credits: San Diego State University CWC Project Team San Diego State University’s Connecting Wildlands and Communities Project Team: Data disclaimer: The user accepts sole responsibility for the correct interpretation and use of the data provided.