First of all ,look and see which way the sign is going. they are usually going to/from bedding areat to feed areas. The elk will bed all day, feed all night. They bed in good , heavy cover. Be there BEFORE daylight and again in the PM and stay till after dark. Get your binos and spotting scopes out and minutely look over the cover, ya just might see them anytime. Look for timber, just as good as aspens.