"Isla del Burro" ("Donkey Island") is the largest island of the lake. Llama races are held on the Saturday prior to the Sunday burro run. Wild burro and bobcat can be found, as well as bison in limited quantity. Her pet is a burro called Burrito. The Rio San Rodrigo is the largest river originating in the Sierra del Burro. Praiseworthy and Jack then use the money to buy a burro and a squirrel gun. Other songs like "Por Burro" and "Amar Por Amar" includes social themes. "Giant Adventure" once again paired Barney with Benny Burro. Pedro is a fictional burro created as a mascot for the magazine. Quick Draw was often accompanied by his deputy, a Mexican burro called Baba Looey (Butler). The copper deposit is in sandstones of the Dakota Sandstone and Burro Canyon Formation. There are several other burro races in Colorado, the most notable takes place in Leadville. Hunky is a mother burro and Spunky is her young son. Harley arrives on a burro and convinces him to go and get a beer. It has lithography similar to the Burro Canyon Formation in the region.