Mt. Mortar

Cave with 3 entrances at Johto's Route 42. The middle entrance directs you to the Blackwhite Ruins.

Pokemons: Hitmonlee, Hitmonchan, Hitmontop, Machoke, Golbat, Raticate, Marill, Dewgong, Seel.

Johto
Settlements New Bark Town • Cherrygrove City • Violet City • Azalea Town • Goldenrod City • Ecruteak City Olivine City • Cianwood City • Mahogany Town • Blackthorn City • Whitewood City • Evergreen Town • Johto League Routes 29 • 30 • 31 • 32 • 33 • 34 • 35 • 36 • 37 • 38 • 39 • 40 • 41 • 42 • 43 • 44 • 45 • 46 • 47 • 48 • 49 • Underwater Landmarks Dark Cave • Sprout Tower • Ruins of Alph • Union Cave • Slowpoke Well • Ilex Forest • Radio Tower Trade Building • Goldenrod Tunnel • National Park • Research Lab • Bell Tower • Bellchime Trail Brass Tower • Moomoo Farm • Glitter Lighthouse • Cianvine Bridge • Chuck's Dojo • Cliff Edge Cave • Cliff Cave • Embedded Tower Safari Zone • Whirl Islands • Mt. Mortar • Lake of Rage • Team Rocket HQ • Ice Path • Dragon's Den Mt. Silver • Bamboo Forest • Church of Alpha • Victory Road Access to New Island • Tunod • Rankor