San Diego Nature Preserve
Preserve and research laboratory owned by UC Regents.844 Acres View in Trail Finder
Hiking is permitted on established trails.
No dogs. Walking only (i.e. no bicycle riding) No littering. Use only working trails. Stay off the trails which are closed. Stay off the cliff face. Stay on the correct side of the markers.
The GPS map progressively increases detail as you zoom in to prevent information overload. Trail Finder maps are a subset of the GPS map. Trail Finder maps of large regions do not include the lowest zoom levels. In most cases, the GPS map has two more layers of detail than the Trail Finder maps.