Vocabulary consisting only from characters you are able to read
上る
noboru
(1)to rise, to go up, to come up, to ascend, to be raised, (2)to enter (esp. from outdoors), to come in, to go in, (3)to enter (a school), to advance to the next grade, (4)to get out (of water), t godan, jlpt3, verb, vintrans
男女
danjo
man and woman, men and womenmix
山川
sansen; yamakawa; yamagawa
mountains and rivers; mountains and rivers; mountain riversmix
よじ上る
yojinoboru
to climb, to clamber (over, up), to scramble (up), to scale, to claw one's way upgodan, verb, vintrans
山上
sanjou
mountain topmix
水力
suiryoku
hydraulic power, water powermix