Comment on FR Doc # E7-09351

July 6, 2007 Yellowstone National Park Winter Use Proposed Rule P. O. Box 168 Yellowstone National Park, WY 82190 RE: RIN 1024-AD55 Dear Rule Makers: This letter is regarding the Winter Use Proposed Rule for Grand Teton and Yellowstone National Parks and the John D. Rockefeller, Jr., Memorial Parkway. I support the continued use of snowmobiles for winter transportation in these parks. 1) I believe the rules should be ammended to allow at least 20% of Yellowstone?s daily snowmobiles entries to be led by a non-commercial guide who has taken a short training course. 2) Sylvan Pass provides important access to Yellowstone through the East Entrance. Therefore I request Sylvan Pass be kept open to snowmobile and snowcoach traffic. 3) The Yellowstone side-roads provide opportunities for visitors to view the beauty of the park. I support re-opening these road segments to snowmobiles in the afternoons. 4) The maximum commercial snowmobile group size should remain at 11 (10 plus 1 guide) versus being decreased to 8 as proposed by this rule 5) The daily snowcoach limits of 78 per day proposed is higher than necessary and should be reduced to fewer than 50 per day. This should better utilize empty seats in existing snowcoaches, currently averaging just 29 per day entering the park with an average of only 7.5 riders per coach. 6) I support the section of the rule which requires snowcoaches to meet emissions and sound requirements. However, ?beginning in the 2011-2012 season? is a longer phase-in period than necessary; two years advance notice should be more than sufficient. Thank you for your consideration. Sincerely, Robb A Peebles 209 Yarrow Hill Dr Cottage Grove, WI 53527-9001