I was thinking of the Fat Man's Loop but with it being a weekend day and pretty windy I opted for this instead. I did my loop and then went over to the Elden grave, home site, and spring. The spring is flowing pretty well. I took a trail from the spring some distance east and came back on the Pipeline trail.
Just up at the base of Mount Elden near the old 1872 home site for the Elden Family. It is flowing heavily directly from a crack in the dacite. A small pipe captures it and feeds it to a small square metal tank, and then it flows out from that and down a drain before disappearing into the ground. The home site was built here because of the spring, so I think this may be perennial and not seasonal.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.