Thank you for your help.
We couldn't download a call for "rising sap"

, so we're planning to use "blacktail fawn distress".
We also discussed trying "rabbit distress" and maybe some of the other fawn distress calls.
There are a few cow and calf distress calls on the unit, but we didn't see any elk sign so I'm hesitant to try it.
We're early enough in the season we have to stay at lower elevations. There is still a lot of snow covering most of the area.