Thomas Mountain ( 6825 ’ ) South of Hwy 74 Date : Jan 03 , 2016 16 : 00 ~ 16 : 07 ( 7 min ) Course : Drive up With : Sierra Club HPS Team ( Leader : Peter & Ignacia Doggett ) 5 Members Location : Riverside County , about 9 miles south - southeast of Idyllwild , 115 miles from L A DRIVING ROUTE Go south on I - 215 to the Ramona Expressway . Turn left ( east ) . Go east and then southeast on the Ramona Expressway until it ends at SR 74 . Turn left ( east ) . Go east on SR 74 to Mountain Center . Continue east on SR 74 for 5 . 2 miles to a dirt road ( 6 S 13 ) on the right just past Lake Hemet . Turn right . Note your odometer and go as follows : At 4 . 5 miles , fork with a sign " Thomas Mtn 3 , Rouse Hill 7 ". This is the turnoff for Rouse Hill . Keep left . At 7 . 4 miles , fork at a campground . Turn right . At 7 . 8 miles , park by a concrete foundation . HIKING ROUTE Hike northwest along the ridgeline to the final campsite at the farthest northwest extent of the camp road . The remnants of the benchmark are conspicuously found on the flat rock three feet east of the campsite post . There is usually no register . SPECIAL CONDITIONSThe dirt roads in the area may be closed for fire or rainy season . Checkwith the Forest Service in Idyllwild : ( 909 ) 382 - 2921 서쪽 인 Rouse Hill 에서 줌렌즈 로 바라본 Thomas Mtn Thomas Mtn 정상 에서 줌렌즈 로 본 Lake Hemet Thomas Mtn 정상 에서 본 Lake Hemet Thomas Mtn 정상 에서 보 는 Cahuilla Mtn Thomas Mtn 정상 에서 줌렌즈 로 보 는 Rouse Hill Thomas Mtn 정상 에서 줌렌즈 로 보 는 Rouse Hill Thomas Mtn 정상 에서 보 는 Rouse Hill Thomas Mtn 정상 ( 6825 ' ) Cahuilla ( 카위 야 ) Mtn & Little Cahuilla Mtn ***