Show mammoth cave in idaho id a ho about jacht mill miles milla a from dolse boise city idaho there hae has teen t een discovered what Is believed to be the largest cave in that part of the northwest est and the largest in idaho it measures nearly halt half a rille in length that is from its mouth to the lake of course it may be that long again but owing to the lake it la ta impossible to get the exact length without a boat the government 1 unaware of its existence as it Is located on land and in an exceedingly desolate region should the government become abare an arc of iam whereabouts it immediately claim it |