- Last site update: March 23rd, 2002 Excellence in Equestrian Services 2977 Greenland Rd. Dunrobin, ON K0A 1T0 House: (613) 832-3860 Stable: (613) 832-3876 Fax: (613) 832-0175 32-year veterans of the horse industry, Dorothy & Bert Langman provide top quality riding instruction for people of all ages. Whether you're just beginning to ride or showing competitively, Quarry Park offers an excellent ...quarrypark.com