[4] Approximately halfway between Montreal and Sherbrooke, Saint-Alphonse-de-Granby's geography is mainly flat and its great fields have been exploited for agricultural ends (maize is most popularly grown) and for grazing for centuries now; this region distinguishes itself by the presence of rocky zones that form outcrops scattered randomly (some of this rock is exploited in the municipality's large private quarry, owned by Groupe Sintra), mixed forests are also found but are threatened by deforestation serving for residential and commercial expansion.

Since it is a rural area with many fields, mixed forests, and marshlands, it harbours a great number of animals and plant] that are active year-round such as coniferous trees, certain types of birds, fish, and mammals; many species are also present and active in a seasonal fashion because of their migratory or hibernation habits, others still, are flora that remain dormant during the cold seasons; in this group are several thousands of invertebrates, mammals, amphibians, birds, reptiles, grass, bushes, trees and fungi.

Fruit-bearing plants are abundant in the forested regions and alongside roads; the richness of variety make it a coveted place for practices such as hunting, trapping, herbalism, and the collecting of sap in the spring.

Many residents upkeep and cultivate flora that is alien to Quebec, this results in the presence of exotic species growing in many neighbourhoods and natural spaces.

Although its surface area is mostly reserved to the agricultural sector, the municipal council of St-Alphonse-de-Granby knows the importance of its green spaces and has inaugurated, circa 2000, a trail in a forest.

For a long time municipal and private lands have held a network of dirt roads dedicate to ATV and snowmobiles transport.

Abbot Charbonneau became the parson of Adamsville and Saint-Alphonse and lived three months under a locals roof while his clergy house near the church, which would be expanded in 1881.

Around 1905, the town grew around a railroad and a train station (built by Onéisme Boisvert on rang Saint-Georges, the three floors having a general store, hotel, and the living quarters of the owner's family.

A new general store, which sold fresh meat, was opened in 1951, when Omer Bédard bought a three-floor building in the heart of the village.

The town hall was finally opened in 1986 at the intersection of Rue Principale and Route 139; the first public session was held in the new building that year May 16.