Campton Hills in St Charles, IL is my highest rated 9'er. At 1586' holes range from 111' to 223'. Great use of terrain (its on a glacial drumlin...or moraine?), lots of trees, interesting hole shapes make it cool. It is fun 1 disc challenge.....just with a putter or midrange. See if you can score and 18 (or better)....
I would say "short" is less than 5000'. "Pitch n Putt" would be less than say 4500'.
18 holers that I like a lot are:
Reedy Creek - Charlotte,NC - 4813' in the shorts
North Water Tower - Sarasota, FL - 5050'
Lakeview - Sarasota, FL - 3500'/5000'
Vollrath - Sheboygan, WI - 3899'
Timmons - Greenville, SC - 4510'
Kentwood - Raleigh NC - 4085'
Horizons - Winston-Salem, NC 4262'
Elon Eager Beaver - Charlotte, NC - 3338'/4415'
Cedarock - Burlington, NC - 4493'
Camp Catalpa - Richmond, KY - 4668'