Carte topographique Allen

Altitude moyenne : 172 m

Altitude moyenne : 157 m

Altitude moyenne : 206 m

Altitude moyenne : 163 m

Altitude moyenne : 156 m

Altitude moyenne : 227 m

Altitude moyenne : 206 m

When the Dallas area was being settled by American pioneers, many of the settlers traveled by wagon trains along the Shawnee Trail. This trail became the Preston Trail, and later, Preston Road. With all of this activity, the community of Lebanon was founded along this trail, and was granted a U.S. post office…

Altitude moyenne : 191 m

Altitude moyenne : 218 m

At first, Plano's population grew slowly, reaching 1,304 in 1900 and 3,695 in 1960. By 1970, Plano began to feel some of the boom its neighbors had experienced after World War II. A series of public works projects and a change in taxes that removed the farming community from the town helped increase the…

Altitude moyenne : 181 m

Altitude moyenne : 176 m

Altitude moyenne : 156 m

Altitude moyenne : 200 m

Altitude moyenne : 172 m

Altitude moyenne : 206 m