One thing i will remind you is you are not hunting whitetails so the elk won't feed in the same place everyday and they don't always use the same trails to enter the feeding area. Where i hunt i have found the elk have about three different areas and they rotate through them every few days so they don't stay in a area too long and attract too many prey animals and they also like to move to different feed areas depending on what they want to eat. What i would do if i were you is find a good vantage point via your topo map and get up there first light and start glassing all day try not to move much so you don't give your position away and just hang out pack a lunch and a bunch of water. It may seem like you are there forever but i will promise you that you will see more elk if you let the glass do the walking. I located three herds one day and i made a move and i called in a little spike for my dad. Good luck and hopefully this helps.