Crawl Tool Producing Random URL's

[MyNet]

For some reason SEOmoz's crawl tool is returning duplicate content URL's that don't exist on my website.  It is returning pages like "mydomain.com/pages/pages/pages/pages/pages/pricing"  Nothing like that exists as a URL on my website.  Has anyone experienced something similar to this, know what's causing it, or know how I can fix it?

[Seaward-Group]

I had this weird issue too but it was down to how our developers created the website. Does "mydomain.com/pages/pages/pages/pages/pages/pricing" still take you to the correct page or does it show you a 404 error?

[MyNet]

Well we have our website setup to where if you type something after mydomain.com/ that is not a valid URL it will take you to the site map.  For example if I typed in mydomain.com/ljlksdfsdfkjsdlfjsflj it would take me to the site map.  The same holds true for mydomain.com/pages/pages/pages/pages/pages/pricing.  So to answer your question, no it does not take you to the correct page, but it doesn't give you a 404 error either.  It takes you to the site map.

[kchandler]

The same thing is happening for one of my campaigns, specifically for a 302 redirect to the homepage. My guess is I need to update it to a 301, but I'm not 100% sure if that would solve the issue?