It is always a good feeling when you can come across an old bison skull. Nice find! Did you look around and see if there could have been any Indian artifacts?
Check out the sagebrush hardpans where there is a wide open area with a small drainage going through the area. A lot of the times it can help if you can get the sun to reflect off of the material. Up your way you will sometimes find petrified wood, but you should be able to pick out an artifact quite easily. This one place near Ryegate I walked out from the road (With permission) in an open pasture and within 45 min. I found 4 points in the hardpans.
Did find one nice petrified log sticking out but I left it alone. It would fall apart if I messed with it. Do you know what era petrified wood comes from? I thought it was out of place where I found it. Thanks for the tip.
Wow! That's really cool! I don't know what era that petrified wood is from but I know it's something like 20 million-300+ million years. Here in New York we have a petrified forest that's over 300 million years old in Schoharie NY. Unfortunately It doesn't show the same colors like you guys get out west!!