The "East NPS Operations" is not part of Yosemite National Park and channel 1 is not "depot" as listed. I believe what you have here is the channel list for Devils Postpile National Monument (that's right there is not an apostrophe in the name). The official Park Service abbreviation for this unit is "DEPO" and follows the convention of using the first four letters of a single word National Park Unit or the first two letters of the first two words in a double word or more Park unit name. Thus "SEKI" is Sequoia and Kings Canyon National Parks and DEPO is under the administration of that Park, not Yosemite. You might notice that the simplex frequency this Park unit uses is the direct for the SEKI backcountry net. Thus this "East NPS Operations" should be listed in Mono County even though it is in Madera County, since the vehicle access is only from the east this unit interfaces with Mono County, the Town of Mammoth Lakes, and the Inyo National Forest. The INF is primarily an eastern Sierra Forest but encompesses the upper middle fork of the San Joaquin River drainage due to this same access issue. The frequency 153.950 is the Mammoth Fire Department's Tac 2 channel. I've never heard of an Eastman FD although a long time member of the Mammoth Town Council has a last name of Eastman.
You also don't show tones for each of the channels in this East Operations list. Mount Warren (not Warrant as shown) is the INF repeater on tone 1 which would be 110.9, Mammoth Mountain on tone 2 which is 123.0, and Glass Mountain is tone 3 on 131.8. I'm not sure what tones the Mono SO north and south mean but I would guess Conway would be north on 136.5 and "Lincoln" would be south on 151.4. The Mammoth PD channel has a repeater on the top of Mammoth Mountain and a 151.4 tone is used.
Those last three channels are unkown to me as they are VHF AM Air frequencies and the last time I looked Devils Postpile was using Bendix-Kings. With the new narrowband radios these would have 16 channels and when I worked on the Mammoth Ranger District everyone, including the NPS at DEPO was using the older 14 channel Kings. Since I have no direct working experience with the new BK's I can't say for sure they cannot work both AM and FM, but I would not think so. I worked very closely with the NPS employees at Devils Postpile, in fact having the keys to the Monument, so I could ski down during the winter for doing work on the National Forest, and would stay in one of the employee housing units that we all set up for living in during the winter. I used to stop by their ranger station to use the phone and their base station radio quite often during the summer, so I knew their channel plan by heart at one time.
Under DNC the licenses for the High Sierra Camps on lowband have been terminated. I believe they are now using cell phones off Mt. Hoffman or satellite phones.
On the list for Yosemite National Park it should be noted that Signal and North Peaks are repeaters used on the Fire Net only. The Park Net (172.650) has an input of 171.650 on Mt. Hoffman and 172.025 on Crane Flat and Wawona (actually Wawona Point but called Wawona by the users of the Park Net). I will have to get back to you on the repeaters used on the Fire Net, as I don't have my notes with me right now, they are down in the car and it is too late to go into the garage to get them. I have just returned from three days camping at Yosemite Creek Campground in the Park.
The list for the call signs is not complete as only the non-law enforcement personnel still use the number system for unit identifiers. I made quite a bit of progress figuring them out this weekend. LE personnel all use international phonetic and number combination identifiers with Tango for the Tuiolumne Ranger District or sub-district as it might be. Bravo is for backcountry and there are many more. I will get back to you on those too, when I have time.
The common federal frequency of 168.350 is no longer being used as the primary project net or tactical in the Park. It is something different and I don't know what it is. I wish I had this information for the Park's LE net last Friday (I left earlier than it was posted wouldn't you know) but did have two handhelds set up on search all weekend trying to find out if the rumor of this net was true. All I can say is that while on a backpack 4 or 5 years ago a Park Ranger, who knew some of the same people I know, told me they were working on a seperate LE net for the Park. I can't confirm nor deny its existence at this point.
As for the DNC lists I'm not sure what is correct. I was not able to monitor any simplex traffic from the Valley from Yosemite Creek Campground. I missed taking a trip into the Park last year for the first time in over 20 years so my information on DNC is dated. I will have to take a quick trip to Olmstead Point, where I can monitor a lot of Valley traffic, even low powered. Olmstead is about 75 minutes from home so I should be able to squeeze in a day of monitoring from there before things calm down in the Park when fall arrives.
This weekend was a very good one for monitoring the Park. Lots of action everywhere in the Park, which when driving the roads was no surprise. The peak season of visitation in the Sierra is August and it is usually the craziest. A couple of SAR's, about 5 medivacs, two by helicopter, lots of traffic enforcement with arrests, bear activity from the Valley to White Wolf, an assualt and battery on the trail near Glen Aulin High Sierra Camp, and parking becoming completely full in the Valley. The Park's case file list was at 3,020 for the year as of Sunday morning. The only thing that wasn't active this weekend was fire management.