Here's my list of hits from going around the area including the ones you've found..I'm over in Somerset and can pick up a few of these:
0 463.81875 Somewhat active
1 464.07500
2 464.12500
3 463.77500
4 464.45000
5 461.57500
6 462.20000
7 462.11250
8 463.55000
9 462.43125
10 463.10625
11 460.23125
12 462.73125