Overvoltage
New member
Hi all, I have been lucky enough to be recruited by a historical society team that is looking to find a section of historical, abandoned railroad tracks from the 1830's. I say lucky because the section of railroad is of significant historical value as its construction was an example of the very first railroads in America, and it is in a protected wilderness area that the team has been granted permission to search in. I even have park rangers doing the digging for me (its going to spoil me). The rails have been abandoned for about 170 years. It is in a section of woods that is mostly loose sandy soil and leaf decomposition. We have LIDAR mapping data that somewhat shows where we think the roadbed was and the historical society says the tracks were not removed as far as they know. I have been able to detect a lot of spikes so I know we are in the right area. However, I have not been able to detect any rail at all. I am using a completely open screen, deep on, fast off, seawater on, low trash, pinpoint normal. I did find a piece of big heavy iron, same thickness as the track, that was most likely a spacer for the track and it hit like I thought it would, bottom right of the screen, 36-47 and then overload. I figured large 15ft lengths of track would be easy to locate but that hasn't been the case. We know the track has been covered by sand and soil from erosion as the early documentation of this section of roadway stats that sand had to be continuously removed from the tracks when it was in operation. So, based on this, am I using the right settings and how deep can I expect the CTX3030 to detect big iron such as rails? Could they be just out of detecting range? I suspect they are probably about 3-6ft deep. I do have a pulse induction machine (Infinium LS) but with the amount of smaller iron targets it might not be effective until we clear the area of all smaller targets. Any suggestions?