Lightning Swamp is the largest bushland reserve in the City of Bayswater. Located in an area of bushland in Noranda, a north-eastern suburb of Perth. The bushland is bound on two sides by Tonkin and Reid Highways (north), the Della Road cul-de-sac (East), Malaga Drive (west), and to the south by Mathews Close, which provides the only entry into the area.

The total area is 71.3 hectares of natural bushland, damp lands and wetlands.

An open stormwater drain crosses the length of the site, draining into a seasonal wetland area at the eastern end of the bushland. The north-east corner of LSB is a Conservation Class 4 wetland, which contains water year round.