Outdoor Adventure USA

"A little more than twenty miles southeast of San Diego, within the boundaries of the Mexican land grant Rancho Jamul, a curious and substantial masonry structure stands isolated at the foot of a low hill. The structure houses two octagonal kilns, a brick smokestack rising more than thirty feet above them. Limestone and clay from a deposit on the hill behind were once burned in these kilns by the Jamul Portland Cement Manufacturing Company, an enterprise created during the boom of the 1880s." -San Diego Historical Society

Click the link here for mt full trip report: Jamul Kiln Ruins

John

When you said that the kiln was on the land of the "Mexican land grant Rancho Jamul", does that mean that it is now on private property? Can you enter the building?

DaveK wrote:John

When you said that the kiln was on the land of the "Mexican land grant Rancho Jamul", does that mean that it is now on private property? Can you enter the building?

I think that's just what it was called back in the day. I believe its on BLM land now. We ran into a ranger just before heading out and he didn't say anything about it being private property. It is all part of an ecological reserve. There are old faded signs around the structure that say, unsafe structure stay out.