We are about 40 miles out from the broadcast antennas but have some hills and forests between there and home; when the stations started broadcasting HDTV, I changed my old antenna out for this old-design CM UHF only:
This would work for you - it was an 80 mile range. It worked perfect for us until... channels 8, 10 and 12 moved back to the upper VHF frequencies... so I had to pull it and install a new combo antenna:
While I was at it, I installed the new antenna on a 30' home-made mast. It has stood up to everything mother nature has thrown at it so far. The ugly part of HDTV, when we have any amount of rain or we have heavy fog, channel 2 disappears and 6 is soon to follow. Those two are in the high UHF frequencies:
KATUDT - ABC
channel 2.1
UHF Frequency 43
KOINDT - CBS
Channel 6.1, 6.2, 6.3
UHF Frequency 40
KGWDT - NBC
Channel 8.1, 8.2, 8.3
VHF Frequency 8
KOPBDT - PBS
Channel 10.1, 10.2, 10.3
VHF Frequency 10
KPTVDT - Fox
Channel 12.1
VHF Frequency 12
Just showing what I have & had... I understand the OP's desire for UHF only.