You as the reader are shocked to learn that there was this much mining activity done east and north east of Echo Mountain. Maybe you don’t even know about the 19+ mines in Las Flores Canyon, or even the Dawn Mine workings in Millard. I welcome you to my biggest and longest lasting research project of the mining history of Altadena and its utter lack of documentation.
My first goal was to see if there were any more records of the survey so I reached out to the Bureau of Land Management (BLM) and got a more “high res” copy. Using the Public Land Survey System, (PLSS) I was able to roughly align the PDF of the survey onto a map and georeferenced it into a GEOTIFF. The exact locations of the tunnels and shafts still did not align with the tunnels that actually exist and after a few more bushwhacking trips with friends I dragged along, I couldn’t find the tunnels from the survey. The shafts on the other hand would be maybe impossible to find due to the crumbling nature of the front range of our mountains. After a few more visits to the ridge and the canyon to search in the spots where adits should have been, I came up with nothing. I decided to change up my georeferencing strategy a bit and reference real life structures like the alpine tavern and the mt. lowe railway. This proved to be extra challenging even though it seemed to be more accurate, mostly because the railway and the alpine tavern are so far away that the accuracy of those points would stretch the middle of the image due to it being hand drawn and would become inaccurate. I ended up cropping the survey in half to get two separate surveys which I then georeferenced separately. This worked okay but I wasn’t confident in locations of the tunnels with the terrain.
Over the next few years, I put this project on hold and began working on other projects in the mountains. Once in a while I’d look online to see if anyone has found anything new but there was no activity. I randomly got in touch with a guy named Nick Grothe who runs Forgotten Mining History on instagram and has a youtube channel. He happened to be just a year younger than me and too was inspired by Hugh Blanchard’s work on lagoldmines.com. He reached out asking if I knew anything about the Eagle Lutch Mine west of Las Flores, which I had not. Hiram Reid wrote about it in his History of Pasadena book but made little mention of it or it’s details. Nick and I spent a day together where I gave him a tour of the mines in Las Flores Canyon, followed by a search for the Eagle Lutch Mine. We found the portal location pretty fast mostly by just going off of Reid’s account of it being 1 canyon west of Las Flores. After a short excavation, the tunnel opened up to a maybe 20 foot passageway. This was the last major discovery in the Altadena area since I found Tunnel #5 in Las Flores Canyon!
4 years later after this damn Eaton Fire, I’m back on the grind! During the last few years, I’ve been visiting the Huntington Library to do research on my other various history projects and recently learned about the Solano Reeve Collection which contains survey notes of various places in the Los Angeles area. One of the books, field book 403, contained notes from the original surveyors of Mineral Survey #4237, which obviously was of big interest to me. When I got my hands on the book, I quickly found what I was looking for and was met with lots of math and numbers. I flipped through the whole book and found some other survey notes but at the very end of the book, I had found THE GOLD!!!! This found some hand drawn surveys that showed the SW corner of 4237 and its claims, lined up with a few other claims that I hadn’t heard of before. The map showed echo mountain railway and it’s various trails that appeared to be the ones already found by Paul Ayers and other historians. What was super interesting about this map was that it was from 1904 and very well scaled to the real environment, AND it was hand drawn in a small notebook! I took some very good photos of the pages so I could eventually overlay them in QGIS and use it as the main reference for georeferencing later. When I got home, I immediately got to work in QGIS and got a new georeference that made the most sense. Referencing a hand drawn survey in a notebook made the whole survey and it’s centerlines a whole 1500 ft off of the PLSS lines from the modern era. The new reference shows the mines in the SW corner to line up with the Gooseberry Motorway, which makes sense since that particular section of the road was a wagon road built for mining according to Hiram Reid. The mine locations in the northern sections of the map feel promising too and overall I’m feeling hopeful for this project! Sadly I will have to wait a few more years until the burn area opens and some vegetation grows back well enough to scramble on. If you look closely, you'll see how insane this is!
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Below is the survey aligned with the PLSS boundaries. Notice how the Mt. Lowe railway curve doesn't line up with the survey. *
Below is the process of georeferencing the survey with the new guides from the field book.
* Below is a list updated as of today, 8/21/2026 of every mine found in the survey. This list doesn’t even count the known mines in Pine Canyon which are the exploratory tunnel, Surprise Mine, and the Scorpion Mine.
- Fremont Mine (Carrie)
