Fremont National Forest, co-op with the Klamath Indian Reservation 32S-14E-21
September 1925: "On Aug. 5, the telephone line to Sycan Valley was completed and a phone was installed in the ZX ranch house." (Six Twenty-Six)
1929: The lookout was a cooperatively operated post by the Fremont National Forest and the Klamath Indian Agency.
April 19, 1930: " With a man on Yamsay and with a road crew working in the Sykan and Black Hills country it will hardly be necessary for us this year to maintain or help maintain a lookout and smoke-chaser at ZX as we did last year. We are writing at this time to notify you that we would not be interested this year to cooperate with you in paying of the lookout and smoke-chaser’s wages on the ZX ranch as we did last year. However if we can be of any assistance to you in any other manner we will be very glad to have you let us know." (From a letter to the Supervisor of the Fremont National Forest from the Superintendent of the Klamath Agency)
April 30, 1930: " I had assumed that you would not care to cooperate in the Sycan-ZX station this year inasmuch as you have completed Yamsay. We have therefore made arrangements to take care of this station ourselves, and we will of course be very glad to give you every assistance of which the station is capable. I anticipate that your Yamsay lookout will be able to give us valuable service on our territory." (Letter from Supervisor Brown of the Fremont National Forest to the Superintendent of the Klamath Agency)