A guide to some lesser-known but genuinely useful map resources for the Indian Himalaya — from Harish Kapadia’s expedition sketches to Depi Chaudhry’s trekking maps and the Pahar archive.

Five friends, a rented tent from the Indian Mountaineering Foundation, and a bus to Govind Ghat — the beginning of a trek to the Valley of Flowers and Hemkund Sahib.