I am personally in favor of placing bolt anchors to save vegetation and also for safety reasons but unfortunately it is also my opinion that you will need USFS approval. My opinion is based on the following information:
Fixed anchors are small metal devises used in the sport of rock climbing which are drilled or pounded into the faces of cliffs to enable ascent and/or decent of a cliff, mountain, or boulder. They can take the form of nylon slings, bolts, or pitons. Typically, these anchors are placed by the first ascent party and then are used by other climbers for an indefinite period of time (USDA 1999).
All new fixed anchor and bolt installation on the Stanton District must receive prior approval of the District Ranger.
Also the following applies to the particular location of which you speak:
Limit climbing on Tower Rock or Eagles Peak to allow vegetation to recover.
The last two quotes are from the DBNF website -
http://www.southernregion.fs.fed.us/boone/rockclimb.htm If you want to take this any further I suggest you contact the Stanton District Ranger. Good luck, I currently have an application in for several new sport routes and trad routes w/top anchors. I have been told directly by the Stanton District Ranger that it will be at least two years after the Revised Forest Plan is approved before my application will be able to be considered.
"Be responsible for your actions and sensitive to the concerns of other visitors and land managers. ... Your reward is the opportunity to climb in one of the most beautiful areas in this part of the country." John H. Bronaugh