What is "gaasyendietha"

Gaasyendietha, according to Seneca mythology, is a dragon that dwells in the deep areas of rivers and lakes of Canada, especially Lake Ontario. This dragon could fly on a trail of fire, and it could also spew fire.

It is also known as the 'meteor dragon', in reference to its supposed origin from a meteoroid that had impacted the Earth.It is also capable of crossing the heavens on a trail of fire.