In Mick's last four frequencies the VHF are mobile inputs to the Inyo S.O.'s 154.725 and 151.025 networks. The two UHF frequencies are used for links to Cerro Gordo Peak (southeast of Lone Pine) to Rogers (just north of Telescope Peak - the highest point in the Panamint Range which dominates the western horizon at Furnance Creek). Cerro Gordo is then linked to Mazourka and then into the Sheriff's Office in Independence known as "Control" or "Control 1" on the radio. Since Rogers is used to bring up El Paso Peak and Tecopa using the mobile input frequencies I would recommend listiening to all four of these frequencies as you can pick up more than just Rogers Peak traffic that way. To decipher what mountain top you are listening to the tones are: 136.5 Cerro Gordo, 141.3 Rogers, 162.2 Tecopa, and 173.8 El Paso Peak. El Paso is south of Ridgecrest and covers the Pearsonville and Nine Mille Canyon areas in the southwest portion of the county. Tecopa covers the southeast portion of the county and is just 100-200 feet into San Bernardino County south of the town of the same name.
The 153.875 frequency will not be heard in Death Valley as the only repeater is located on Mazourka Peak, which is located on the west side of the Inyo Mountains on a lower peak than the crest of that range. You might be able to pick it up from some locations within the expanded boundaries of the now Death Valley National Park (until 1994 it was a national monument and about 1 million acres smaller) such as Saline Valley and Eureka Dunes, but don't plan on hearing any activity that involves those locations. The Park Service handles most of the EMS/LE situations in those areas. Try listening to 154.430 for fire traffic in the Furnance Creek area. In all my trips to Death Valley I've only heard one fire dispatch for one structure fire there and I didn't take good enough notes to tell me if the Sheriff's dispatch center in Independence broadcast the dispatch or if someone locally did it. There are no radio links for a remote base on 154.430 in the Park or in the Tecopa-Shoshone area, so I don't know how it is done, perhaps by phone lines.
Also there is a amateur repeater on 2 meters located just north of Trona, on the west side of the Panimint Range on 146.970. You won't hear it from Death Valley itself and since the entrire Panamint Valley is remote, traffic on this repeater is infrequent.
Xanterra Parks and Resorts, formally Amfac, formally Fred Harvey, has gotten rid of most of their VHF radios and put almost everything on their new UHF repeater on 461.025 and the tones are: 103.5 Maintenance Ranch and Inn, 114.8 Ranch Operations "R" units, and 127.3 Inn Operations "Inn" units. Security is alone on 151.835 with a 131.8 tone and they id as "S" units. The 461 MHz repeater is located at the ranch and is an FB4 or 6 which means they can share the cost use of the repeater with others in a cost sharing arrangement "FB4" or is provided as a for profit situation "FB6". I'm not sure who they think they would get to share the repeater as the only other entitiy at Furnace Creek is the Shoshone Tribe. Since they were given about 1,000 or more acres when the Park was established in 1994 and there has been some talk about a casino on their land, the repeater may get some other users. I hope the casino never comes to pass and wish there were no private inholdings at Furnance Creek, but I depart from radio on this point.
Tones for the Park are 146.2 Grapevine Peak (southeast of Scotty's Castle, 127.3 Dry Peak (north central portion of Park), and 141.3 Rogers Peak. Last time I was there alone and could keep track of the radio, the tones were not being broadcast on the output on Dry and Grapevine so I think the field units were announcing which one they were using when talking to dispatch. Dispatch is handled by the San Bernardino Federal Interagency Communications Center and is linked to a remote base on Rogers Peak via microwave via San Seavine Peak near Lytle Creek near San Bernardino in one hop. The last time I was in Death Valley was a year ago and I was with my wife and some other friends and the 100+ year water and wildflower show so occupied us and our cameras, that I only had a chance to to hear a couple of peeps out of the radio. Call signs for the Park are: 100 Park Superintendent's satff, 200 Resources (biologists, geologists, botanists, archeaologists, etc.), 300 Interpretation (campfire, auditorium, and tour presentations), 400 protection rangers (LEO's), 500 South Zone Maintenance, 600 North Zone Maintenance (Scotty's area), 700 Base Stations (this is an NPS wide situation as all NPS licenses have a 700 number), and 800 Manzanar National Histroric Site (under the Superintendent of Death Valley NP). One bit of local jargon used is "the Nevada triangle" which is what the Nevada portion of the Park is called and is physically descriptive of the area.
You should also program in the BLM California Desert District on 166.375. The BLM has a Ranger stationed in Shoshone and one in Lone Pine I believe, but I'm not entirely sure these positions have survived the current budget and idealogical onslaught the NPS, USFS, BLM, and USFWS have been experiencing. Sites and tones are 110.9 Government, 131.8 Rogers, 136.5 Cerro Gordo, and 136.5 also for Turquoise Peak just outside of Baker, CA. BLM rangers often get involved with the CHP, Inyo SO, and the NPS on cases and traffic stops and have a lot of interesting incidents themselves. The remote areas outside the Park on BLM administered public lands have been the temporary hiding place for meth labs, pot plantations, and some interesting criminal characters, among them Charles Manson, who was found in the soutwest portion of the Panamint Range after the infamous murders "the family" committed. BLM lands were the last place Charlie was a free man.
Other natural resource agency frequencies are 151.430 for the CA Dept of Fish and Game, with a 114.8 tone for Rogers and a 118.8 tone for Government Peak. 169.875 is used by the Toiyabe National Forest and you can hear traffic on the Mt Charlston repeater northwest of Las Vegas, the mountain that dominates the Spring Mountain range and your view east of the Park. The Las Vegas District of the BLM uses 169.400 and there is a remote base on High Potosi, with repeaters that can't be received in southeast Inyo County. The Toiyabe NF and Las Vegas District BLM are both dispatched by the Las Vegas Federal Interagency Dispatch Center.
The Caltrans frequency in Mick's list is the statewide construction channel on Rogers. A maintenance repeater is located on Rogers also, with the frequency of 860.7375 and a tone of 123.0. There is a repeater on Tecopa on 856.9875, tone 123.0 for the area east and south of the Park. Call signs are 9-23-+ for Death Valley and 9-24-+ for Shoshone. Shoshone maintains CA 127 all the way to Baker even though the majority of it is in San Berdo Co.
The 35.160 phone company frequency is for a repeater at Stovepipe Wells and it links to Turquoise Mountain near Baker, CA. I think it may carry data or voice circuits for phone service from Stovepipe but I've never heard anything on it. I haven't given it much of a try either.
A frequency not mentioned so far is licensed to Amargosa Business Services and is located on Shadow Mountain southeast of Death Valley Junction on the east side of the Park. It is licensed as a FB6 (private carrier repeater or provided for on a for profit basis) and I would bet it carrys business traffic from Pahrump, NV. I've not spent much time in the Death Valley Junction area as there isn't any lodging available and the primitive camping spots are not among my favorite in southeast Inyo County. I usually spent a night or more in Shoshone each year, but it is lower in elevation than Death Valley Junction and the Shadow Mountain site is blocked by other mountains so I really can't tell you anything about this repeater.
Additional ham repeaters on the east side of the Park include the 147.030 Mt. Schader machine northeast of Pahrump and a low level repeater in Pahrump itself on 146.850 which doesn't cover any of southeast Inyo County unless you are on a high peak. As for amateur coverage in Death Valley as in Furnance Creek, Badwater, and Scotty's Castle, I have found no success on 2m or 70cm. I could not even bring up the Hi Potosi (there is a lower site south of the higher peak by about 5-10 miles) repeater on 146.880 from Tecopa on a consistent basis or with enough signal to even have a voice over all the noise. Too bad too as this repeater is part of the Western Intertie, with full time linked repeaters all over western Utah and southern Idaho. I once got into the Silver Peak (east of Bishop) 146.940 machine from Ubehebe Crater west of Scotty's Castle. I've heard a few people bring it up from Death Valley in various locations but they are using 5/8 wave antennas or longer, or beams to accomplish this. If you depend of 2 meters or 70 cm in the boonies of Death Valley where cell phones dare not tread (they don't work either in the boonies) you are out of luck unless you are on a high peak. I've suggested a 2 meter repeater for Rogers to my fellow members of the Bishop Amateur Radio Club, but expense and a small membership make this difficult.
I've left out what I know about scanning the adjacent Nevada counties as this post is long enough.
There you have it, everything you wanted to know about scanning in the Death Valley area and a lot more you probably didn't want to know. I've considered and even have a draft written for a directory of Inyo and Mono Counties, but the thought of publishing and marketing it does not fit in well with all my other hobbies. I'm not sure there is enough interest anyway.