Mar 12, 2020 Screening plants differ to hedges they are less dense and less formal, allowing glimpses of what is beyond while creating an informal boundary. Some, such as bamboo and grasses, are dynamic, rustling gently in the wind. They take up less space than a hedge, so are a good choice for smaller gardens and courtyards. Basalt quarry Harrison ID - REF210305. . We have a 12.95 acres basalt aggregates quarry for sale. There are 3,5million pounds of reserves and the quarry is permitted until 2024. Quarry is operational and can permit can be renewed if required. It is located in Harrison ID along Hwy 97, approx 1 mile east.