Nihon

Nihon is the region where Pokemon Gold & Silver 97 Reforged takes place. Here are the locations in it:

Silent Town

Route 101

Silent Hills

Pagota City

Brass Tower

Pagota Gym (Gym #1, specializes in the Flying type)

Route 102

Westport City

Westport Gym (Gym #2, specializes in the Bug type)

Westport Docks

Teknos Docks

Teknos City

Route 120

Boulder Mine

Teknos Aquarium

Teknos Gym (Gym #3, specializes in the Normal type)

Route 103

Birdon Town

Slowpoke Well

Birdon Gym (Gym #4, specializes in the Ghost type)

Route 116

Route 117

Endon Cave

Sanskrit Town

Ruins of Alph

Tidal Grotto

Boardwalk

Route 118

Sunpoint City

Magma Shaft

Sunpoint Docks

Team Rocket's Ship

Route 119

Route 104

Route 105

Jade Forest

Route 106

Alloy City

Route 107

Koban Island

Dragon's Maw

Alloy Gym (Gym #5, specializes in the Steel type)

Route 108

Route 109

Ampare Cavern

Route 110

Blue Forest

Route 111

Whirl Islands

Deepwater Passage

Frostpoint Town

Blue Forest Gym (Gym #6, specializes in the Ice type)

Route 112

Stand City

National Park

Stand Gym (Gym #7, specializes in the Dark type)

Team Rocket Hideout

Jopm Radio Tower

Route 113

Route 114

Kanto Region

Indigo Plateau (Gym #8, does not specialize in any single type)

Route 115

Crown Pass

Crown City

Victory Road

Nihon League

Also see Southwest Islands.