Since PTO's are indivual, unaffilitated organizations, it is a little difficult to find PTO neighbors. Hopefully, some Forum members will answer you with personal knowledge. I did a quick web search for you, and found the following. It's not first-hand information, but maybe offers some leads:
*Treasure Mountain Middle School, Park City, UT
*The Jeremy Ranch Elementary School, Park City
Park City School District
2700 Kearns Blvd.
Park City, Utah 84060
435-645-5600 Fax: 435-645-5609
*Mueller Park Jr High - (801)402-6300
Doug Beer, Principal
955 East 1800 South, Bountiful, UT 84010
* Rich Junior High School, 54 East 100 South Laketown, Utah 84038 Voice: 435-946-3358 Fax: 435-946-3366 Kip Motta - Principal
www.rjh.rich.k12.ut.us/
(mentioned PTO as a community stakeholder in their 5 year plan)
Good luck!