This seems very reasonable and would likely yield close to 300" IF the terrain there went up higher. That 2,900ft number is not much different than 3,000ft on Mansfield the longer we run it out. We've seen everything from 150s in 2015-16 to 375" in 2016-17 at 3,000ft.... but most years the past decade have been mid-200s.
But go up another 500-1,000ft is where you start to get into that next level stuff.
I still truly believe that a lot of our snowfall comes in relatively dry air masses or fighting dry boundary layer air... the nickle and dime stuff especially... that all orographic's aside, just going upward in the atmosphere will produce more QPF, better flake structure (longer arms that haven't shriveled up falling another 2-3,000ft downward) and more inches of snowfall. I think about it every time it's snowing nicely at 1,500ft but then ride the Gondola to 3,600ft walk out of the Cliff House and it's like really snowing. Flakes are bigger, stacking better, and then you ski down and the snowfall gradually lightens up just a bit as the Temp/dew spread increases slightly and RH dries out a bit.