My largest find yet - Hadrosaur tibia?

[Erosion]

I just came across this while fossil hunting in the Alberta badlands on Monday. It is by far the largest bone I've found so far. It came out of the Horseshoe Canyon Formation. My first guess was a hadrosaur tibia, likely Edmontosaurus based on the 1M size? Any folks with more experience to confirm or correct my guess?

[jpc]

I think you are right.  What is the other bone in the bottom right of the last photo.  Looks like there might be a dino in an orange concretion there.  I know the laws in AB are pretty strict.  Are you allowed to collect this yourself?