JBER snow machine trails open Published Dec. 16, 2011 By JBER PAO JOINT BASE ELMENDORF-rICHARDSON -- JBER trails are open for snow machine use as of Dec. 16. Riders on the JBER-Richardson side should use the USARTRAK permitting system. Riders on the JBER-Elmendorf side should contact the base wildlife office at 552-8609. State of Alaska registration is required for snow machine use on the installation.