B4RN is using burial, which is a great approach for reducing long-term maintenance, but the extra costs of burial may or may not work in other localities.<p>Burying wires in gravel, or burying below the usual furrow depths in farmer's fields is fairly easy, and trenchers are commonly available. (And if you bury your wires outside of the growing season, you won't disrupt the farming.)<p>In an area of the US that I'm familiar with, the granite ledge and glacial erratics (big rocks) would make burial problematic. Nearly all electric and telecommunications distribution wiring is accordingly overhead; on poles. With the problems that brings; ice storms, trees, etc.<p>Rural distribution does have some advantages in terms of not digging up existing infrastructure, and the ability to easily trench connections across the gravel-surface roads, but the cabling distances are usually (much) longer, and the numbers of and densities of houses and potential subscribers are (much) lower than in urban areas.<p>This means that the survival economics of the installation are fully in play; how many subscribers you'll gather, and how much to join, and how much to maintain the (overhead) wiring. This is why many rural areas of the US will tend to have DSL broadband, at best. DSL is cheap(er), and it uses the existing copper.<p>As with the rural electrification and rural telephone efforts that preceded this in the US, the stumbling block for rural broadband is the (large) installation costs; they're not a financially viable undertaking for commercial entities.<p>Incumbent telcos are seeing their business go to cellular, and wireline subscribers are dropping. Some of the telcos have been in and out of bankruptcy. Because of the budgets and the wireline subscriber trends, incumbent telcos also aren't inclined to install wiring ahead of a requirement; dark fiber isn't commonly installed during repairs in this area.<p>Yes, you might hope to see some of the incumbents build out broadband as a way to stay relevant. But in rural areas, that build-out involves greater distances and lower (potential) customer densities, and with higher on-going maintenance costs. And around we go...