your link claims 60' height? Is that accurate? "Seems" taller but there's little to judge by.
Unfortunately, there is only an unterpolated height, as the USGS shows no elevation. Therefore, as far as we can see on the quad, it only has 60' of interpolated height. However, it could be as high as 100', if you add up the extra 20+20 in interpolation. Based on inspection, I'd venture to say it as at least 80' high.