This is my first stop when looking up, or when I've "found" a new (to me) systems in the valley. The site is a bit old, but there is still a lot of good info. Thank-you, Gary KD7RTO, for this site:
http://www.qsl.net/kd7rto/utah/motosys.htm
From personnal monitoring (and the above lists), the following is what I have monitored in the 900 Mhz band, using Trunker. Hope it helps...
Chnl,Freq,User,Site,Misc
43,935.5500,4936,Radio Com Inc,Site 00,,,,
128,936.6125,4936,Radio Com Inc,Site 00,cc,,,
288,938.6125,4936,Radio Com Inc,Site 00,,,,
328,939.1125,4936,Radio Com Inc,Site 00,,,,
115,936.4500,5219,Knect Copper,Site 00,,,,
117,936.4750,5219,Knect Copper,Site 00,,,,
156,936.9625,5219,Knect Copper,Site 00,cc,,,
157,936.9750,5219,Knect Copper,Site 00,acc,,,
159,937.0000,5219,Knect Copper,Site 00,,,,
31,935.4000,7031,Knect Copper,Site 00,,,,
32,935.4125,7031,Knect Copper,Site 00,,,,
33,935.4250,7031,Knect Copper,Site 00,cc,,,
71,935.9000,7031,Knect Copper,Site 00,,,,
79,936.0000,7031,Knect Copper,Site 00, duplicate,,,
9,935.1250,8014,Utah Comms & El,Site 00,,,,
49,935.6250,8014,Utah Comms & El,Site 00,cc,,,
98,936.2375,8014,Utah Comms & El,Site 00,,,,
139,936.7500,8014,Utah Comms & El,Site 00,,,,
174,937.1875,8014,Utah Comms & El,Site 00,,,,
217,937.7250,8014,Utah Comms & El,Site 00,,,,
280,938.5125,8014,Utah Comms & El,Site 00,acc,,,
281,938.5250,8014,Utah Comms & El,Site 00,,,,
320,939.0125,8014,Utah Comms & El,Site 00,,,,
321,939.0250,8014,Utah Comms & El,Site 00,,,,
380,939.7625,8014,Utah Comms & El,Site 00,cc,,,
381,939.7750,8014,Utah Comms & El,Site 00,,,,
250,938.1375,8730,,Site 00,,,,
293,938.6750,8730,,Site 00,cc,,,
238,937.9875,8732,,Site 00,cc,,,
213,937.6750,8735,,Site 00,,,,
257,938.2250,8735,,Site 00,,,,
298,938.7375,8735,,Site 00,cc,,,
333,939.1750,8735,,Site 00,,,,
94,936.1875,6B05,USC Radio Srvc,Site 00,,,,
95,936.2000,6B05,USC Radio Srvc,Site 00,,,,
99,936.2500,6B05,USC Radio Srvc,Site 00,,,,
170,937.1375,6B05,USC Radio Srvc,Site 00,,,,
173,937.1750,6B05,USC Radio Srvc,Site 00,,,,
331,939.1500,6B05,USC Radio Srvc,Site 00,acc,,,
332,939.1625,6B05,USC Radio Srvc,Site 00,acc,,,
338,939.2375,6B05,USC Radio Srvc,Site 00,cc,,,
30,935.3875,6F1A,Knect Copper,Site 00,,,,
35,935.4500,6F1A,Knect Copper,Site 00,,,,
37,935.4750,6F1A,Knect Copper,Site 00,cc,,,
79,936.0000,6F1A,Knect Copper,Site 00, duplicate,,,
116,936.4625,6F1A,Knect Copper,Site 00,,,,
130,936.6375,6F1A,Knect Copper,Site 00,,,,
155,936.9500,6F1A,Knect Copper,Site 00,acc,,,
179,937.2500,7F3A,Delta Air,Site 00,,,,
211,937.6500,7F3A,Delta Air,Site 00,,,,
254,938.1875,7F3A,Delta Air,Site 00,,,,
255,938.2000,7F3A,Delta Air,Site 00,cc,,,
258,938.2375,7F3A,Delta Air,Site 00,,,,
259,938.2500,7F3A,Delta Air,Site 00,,,,
291,938.6500,7F3A,Delta Air,Site 00,,,,
334,939.1875,7F3A,Delta Air,Site 00,,,,
335,939.2000,7F3A,Delta Air,Site 00,,,,
339,939.2500,7F3A,Delta Air,Site 00,,,,
91,936.1500,872F,Geneva Rock,Site 00,,,,
134,936.6875,872F,Geneva Rock,Site 00,,,,
176,937.2125,872F,Geneva Rock,Site 00,,,,
219,937.7500,872F,Geneva Rock,Site 00,acc,,,
279,938.5000,872F,Geneva Rock,Site 00,acc,,,
357,939.4750,872F,Geneva Rock,Site 00,cc,,,