It's good to hear from you. Yes, I do have a great deal of information on Durango, particularly the northwest part of the state. This is because my parents are from this region. Among the nearly 36,000 people in my family tree, I must have at least 1,000 who are from Durango, Durango. However, I have not directed my research to the capital city just yet. But, I will.
The surname Nevarez is from my part of Durango. I have 352 people in my family tree with Nevarez as their surname. I have traced several Nevarez families from Santiago Papasquiaro back to the mid 1700's, and I still have another 100 years more to go.
As far as your Soledad Nevarez, she is not the same as the one I mentioned in my posting. My Soledad Nevarez, who was married to Vicente Gutierrez, would have been born around 1780.
I'm happy to work with you on your research. Please provide details regarding your families, who are you searching for and where.