Badbury Rings in a northwest direction (visible today as a thin strip of woodland) heading for the Roman fort at Hod Hill. At an early stage, this road formed a junction with Ackling Dyke, a Roman road which headed northeast to Old Sarum ("Sorviodunum"). Another road ran across country in a north by northwest direction towards Bath ("Aquae Sulis")., and another ran south to a small port in Poole Harbour ("Moriconium", modern Hamworthy). The final road (still used as a modern trackway on the west side of Badbury Rings) ran in a southwest direction through the settlement of "Vindocladia" heading towards Dorchester
Aphanizomenon flos-aquae toxic chemicals released when cells die. Once released (lysed), and ingested, these toxins can damage liver and nerve tissues in mammals. In areas where water quality is not closely monitored, the World Health Organization has assessed toxic algae as a health risk, citing the production of anatoxin-a, saxitoxins, and cylindrospermopsin. Dogs have been reported to have become ill or have fatal reactions after swimming in rivers and lakes containing toxic "A. flos-aquae". Microcystin toxin has been found in all 16 samples of "A. flos-aquae" products sold as food supplements in Germany and Switzerland, originating from Lake Klamath: 10 of 16