“Something there is that doesn’t love a wall,” wrote Robert Frost, and I think he was onto a larger truth. Of course, Frost – in his “Mending Wall” – was talking about rocks and neighbors, and the poem leaves us with ambivalence about the goodness of fences.
Fences and walls may, at times, make good neighbors – but the big ones tend to be symbols of enmity (think Berlin, Israel, Arizona…) and we just want them down.
A few months ago a high, dark fence went up around lovely Mountain Lake, in the San Francisco park that is one of my favorite spots on the planet. It’s a city park, but the lake (fortunately for us all) is part of the Presidio National Park and has been undergoing an extraordinary restoration for the past few years. It may not yet be back to the purity that made its water just fine for Spanish settlers (and probably the Ohlone and Coast Miwok indigenous people before them) to drink, but years of accumulated glunk, trash and sludge have been hauled away and the lake’s return to life has been a rare joy to watch.
The problem? Although the waters began to clear and native greenery emerged, a proliferation of non-native fish were quashing any hope of bringing back the fish who once belonged. We’re not talking just a couple of ordinary intruders. It was possible to stand on the beach near the murky water’s edge and watch goldfish the size of ahi tuna swimming casually back and forth. With native fish and turtles long displaced by casually dumped household pets, the lake was overrun with carp, bullfrogs – somebody reported a sturgeon – and who knows what else. This writer remembers the brief residence of an alligator, who famously evaded a gator hunter imported from Florida but was eventually removed to the local zoo.
Presidio Trust personnel tried snagging, netting and every known removal method before conceding that the only solution would be to poison the lake. They chose plant-based Rotenone, which kills everything with gills (and happily not much without) and disappears within three days. Thus the fence went up – presumably it was still not a good idea for gill-free people to be wandering near the water. Almost the moment the solution was poured into the four-acre lake, the alien fish died. They were scooped up by the thousands to be studied by ecologists (who reluctantly went along with the project) to determine their origin and soon composted as a final act of goodness. But the fence, for assorted reasons, did not come down.
And over the long weeks that followed it was as if the park itself was inhabited by an alien being. Children still played on the adjacent swings and slides, dog walkers still tossed tennis balls, this writer still exercised on the bars of the fitness trail – but the now-sparkling lake was hidden behind its foreboding shield. Even when the gulls could be heard returning beyond the black screen, and actually seen if you peered through the mesh, the park felt bifurcated and somehow forlorn. Thanksgiving came and went, Christmas was less merry, the New Year not yet happy.
A few days ago, the fence came down. Mountain Lake, the shimmering heart of Mountain Lake Park reappeared, putting on a show of new life. A few familiar ducks may never have left; now they have been joined by coots and grebes and a spiffy ruddy duck who is apparently courting two slightly less flashy lady ruddy ducks. Western pond turtles, chorus frogs and native fish will begin to return in the spring.
The metaphors are abundant: fences come down, sunlight spreads from reflected waters, varied creatures happily coexist, romance blooms.
Where is Robert Frost when we need him?
