Kalevala is a pretty extraordinary text. If you’re looking for an epub of the same translation I put one together for SE last year.[1] The Crawford translation was the most lyrical I could find.

It’s also worth reading up on Lönnrot’s linguistic / ethnological expeditions that he made to compile the text.[2]

[1] https://standardebooks.org/ebooks/elias-lonnrot/the-kalevala...

[2] https://en.wikipedia.org/wiki/Elias_L%C3%B6nnrot#Linguistics...