Gabba-Koorliny: The Sacred Hydrogeology Of Living Water Sanctuaries

1. Gabba-Koorliny: The Concept of Flowing, Living Water

In Bibbullmun hydro-theology, water is divided into two distinct ontological categories: static, ephemeral water (gabba-nyit or gabba-bilya) and sacred, living, flowing water (Gabba-Koorliny).^[1] While surface water fluctuates drastically between wet winters and parched summers, Gabba-Koorliny designates perennial artesian springs, subterranean upwellings, and karst cavern pools that flow continuously regardless of seasonal drought.^[2] These living waters are understood as the physical breath and arterial circulation of the Waugal, serving as the biological anchor points around which all human settlement, seasonal foraging routes, and ceremonial assemblies were organised.^[3]

2. Artesian Springs, Mound Springs & Karst Limestone Caves

The hydrogeology of south-western Australia features extensive coastal limestone formations (Tamala Limestone) and ancient sands that support fragile artesian and mound spring systems.^[4] Sites such as the mound springs of the Swan Coastal Plain, the thermal-buffered cave waters of Yanchep and Augusta, and the deep bubbling soaks along the base of the Darling Scarp were revered as monumental sanctuaries.^[5] Custodians recognised that these springs were sustained by regional subterranean pressure that took decades or centuries to recharge. Consequently, traditional law treated every springhead as a sacred ecological shrine, prohibiting excavation that might pierce the impermeable confining clay layer and cause the artesian aquifer to collapse or drain.^[6]

3. Sacred Protocols for Water Collection & Prohibition on Siltation

Strict religious and environmental protocols governed how Gabba-Koorliny springs were utilised. Customary statutes forbade clearing the dense thickets of sedges (Lepidosperma), paperbark trees (Melaleuca), and freshwater reeds that naturally filtered incoming runoff and prevented sediment from choking the spring's eye (mial).^[7] Water was collected using clean paperbark containers without disturbing the bottom silt; washing clothes, bathing, or cleaning fish at the source was strictly prohibited.^[8] During intense dry spells, neighboring clans traveling through foreign territory were granted unconditional customary right-of-way to drink at Gabba-Koorliny sanctuaries, provided they approached unarmed, observed ceremonial silence, and respected local custodial protocols.^[9]

4. Ecological Fragility in the Modern Anthropocene & Custodial Defence

The modern era has brought unprecedented destruction to Gabba-Koorliny systems across south-western Australia. Intensive agricultural drainage, urbanization, and aggressive commercial groundwater extraction by state water utilities have caused water tables to drop precipitously, drying out ancient peat mound springs and acidifying fragile aquatic ecosystems.^[10] Modern Bibbullmun rangers and legal advocates are actively asserting customary water rights, demanding that statutory environmental impact assessments recognise Gabba-Koorliny as culturally and ecologically irreplaceable living heritage that cannot be commodified or drained for settler industrial growth.^[11]