Huellitas del Corazon, A.C. is a registered Mexican charity that rescues both dogs and cats. They also sponsor clinics for sterilizations and vaccinations. The founders, Joaquin and Yolanda, came from Ciudad de Carmen in Campeche. When they moved to La Paz they brought their rescued dogs and cats with them. They continued their work to not only help abandoned, needy pets but to educate the public about the importance of humane, proper care including spaying/neutering.
You can follow the current events and activities on their Facebook page.